21990959955

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:374

約数の個数: 192

約数和(自身を含む): 42939187200

約数和(自身を除く): 20948227245

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 47, 57, 93, 95, 127, 139, 141, 155, 171, 235, 279, 285, 381, 417, 423, 465, 589, 635, 695, 705, 855, 893, 1143, 1251, 1395, 1457, 1767, 1905, 2085, 2115, 2413, 2641, 2679, 2945, 3937, 4309, 4371, 4465, 5301, 5715, 5969, 6255, 6533, 7239, 7285, 7923, 8037, 8835, 11811, 12065, 12927, 13113, 13205, 13395, 17653, 17907, 19599, 19685, 21545, 21717, 21855, 23769, 26505, 27683, 29845, 32665, 35433, 36195, 38781, 39615, 40185, 52959, 53721, 58797, 59055, 64635, 65565, 74803, 81871, 83049, 88265, 89535, 97995, 108585, 113411, 118845, 124127, 138415, 158877, 177165, 185039, 193905, 202523, 224409, 245613, 249147, 264795, 268605, 293985, 335407, 340233, 372381, 374015, 409355, 415245, 547243, 555117, 567055, 607569, 620635, 673227, 736839, 794385, 829691, 925195, 1006221, 1012615, 1020699, 1117143, 1122045, 1228065, 1245735, 1641729, 1665351, 1677035, 1701165, 1822707, 1861905, 2489073, 2736215, 2775585, 3018663, 3037845, 3366135, 3515741, 3684195, 3847937, 4148455, 4925187, 5031105, 5103495, 5585715, 7467219, 8208645, 8326755, 9113535, 10397617, 10547223, 11543811, 12445365, 15093315, 15764129, 17578705, 19239685, 24625935, 25720421, 31192851, 31641669, 34631433, 37336095, 47292387, 51988085, 52736115, 57719055, 77161263, 78820645, 93578553, 128602105, 141877161, 155964255, 158208345, 173157165, 231483789, 236461935, 385806315, 467892765, 488687999, 709385805, 1157418945, 1466063997, 2443439995, 4398191991, 7330319985, 21990959955]

約数ペア:

[(1, 21990959955), (3, 7330319985), (5, 4398191991), (9, 2443439995), (15, 1466063997), (19, 1157418945), (31, 709385805), (45, 488687999), (47, 467892765), (57, 385806315), (93, 236461935), (95, 231483789), (127, 173157165), (139, 158208345), (141, 155964255), (155, 141877161), (171, 128602105), (235, 93578553), (279, 78820645), (285, 77161263), (381, 57719055), (417, 52736115), (423, 51988085), (465, 47292387), (589, 37336095), (635, 34631433), (695, 31641669), (705, 31192851), (855, 25720421), (893, 24625935), (1143, 19239685), (1251, 17578705), (1395, 15764129), (1457, 15093315), (1767, 12445365), (1905, 11543811), (2085, 10547223), (2115, 10397617), (2413, 9113535), (2641, 8326755), (2679, 8208645), (2945, 7467219), (3937, 5585715), (4309, 5103495), (4371, 5031105), (4465, 4925187), (5301, 4148455), (5715, 3847937), (5969, 3684195), (6255, 3515741), (6533, 3366135), (7239, 3037845), (7285, 3018663), (7923, 2775585), (8037, 2736215), (8835, 2489073), (11811, 1861905), (12065, 1822707), (12927, 1701165), (13113, 1677035), (13205, 1665351), (13395, 1641729), (17653, 1245735), (17907, 1228065), (19599, 1122045), (19685, 1117143), (21545, 1020699), (21717, 1012615), (21855, 1006221), (23769, 925195), (26505, 829691), (27683, 794385), (29845, 736839), (32665, 673227), (35433, 620635), (36195, 607569), (38781, 567055), (39615, 555117), (40185, 547243), (52959, 415245), (53721, 409355), (58797, 374015), (59055, 372381), (64635, 340233), (65565, 335407), (74803, 293985), (81871, 268605), (83049, 264795), (88265, 249147), (89535, 245613), (97995, 224409), (108585, 202523), (113411, 193905), (118845, 185039), (124127, 177165), (138415, 158877)]