21846540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 63995904

約数和(自身を除く): 42149364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 61, 94, 122, 127, 141, 183, 188, 235, 244, 254, 282, 305, 366, 381, 470, 508, 564, 610, 635, 705, 732, 762, 915, 940, 1220, 1270, 1410, 1524, 1830, 1905, 2540, 2820, 2867, 3660, 3810, 5734, 5969, 7620, 7747, 8601, 11468, 11938, 14335, 15494, 17202, 17907, 23241, 23876, 28670, 29845, 30988, 34404, 35814, 38735, 43005, 46482, 57340, 59690, 71628, 77470, 86010, 89535, 92964, 116205, 119380, 154940, 172020, 179070, 232410, 358140, 364109, 464820, 728218, 1092327, 1456436, 1820545, 2184654, 3641090, 4369308, 5461635, 7282180, 10923270, 21846540]

約数ペア:

[(1, 21846540), (2, 10923270), (3, 7282180), (4, 5461635), (5, 4369308), (6, 3641090), (10, 2184654), (12, 1820545), (15, 1456436), (20, 1092327), (30, 728218), (47, 464820), (60, 364109), (61, 358140), (94, 232410), (122, 179070), (127, 172020), (141, 154940), (183, 119380), (188, 116205), (235, 92964), (244, 89535), (254, 86010), (282, 77470), (305, 71628), (366, 59690), (381, 57340), (470, 46482), (508, 43005), (564, 38735), (610, 35814), (635, 34404), (705, 30988), (732, 29845), (762, 28670), (915, 23876), (940, 23241), (1220, 17907), (1270, 17202), (1410, 15494), (1524, 14335), (1830, 11938), (1905, 11468), (2540, 8601), (2820, 7747), (2867, 7620), (3660, 5969), (3810, 5734)]