21090608

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 36762832

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 19, 22, 28, 34, 38, 44, 53, 56, 68, 76, 77, 88, 106, 112, 119, 133, 136, 152, 154, 176, 187, 209, 212, 238, 266, 272, 304, 308, 323, 371, 374, 418, 424, 476, 532, 583, 616, 646, 742, 748, 836, 848, 901, 952, 1007, 1064, 1166, 1232, 1292, 1309, 1463, 1484, 1496, 1672, 1802, 1904, 2014, 2128, 2261, 2332, 2584, 2618, 2926, 2968, 2992, 3344, 3553, 3604, 4028, 4081, 4522, 4664, 5168, 5236, 5852, 5936, 6307, 7049, 7106, 7208, 8056, 8162, 9044, 9328, 9911, 10472, 11077, 11704, 12614, 14098, 14212, 14416, 16112, 16324, 17119, 18088, 19822, 20944, 22154, 23408, 24871, 25228, 28196, 28424, 32648, 34238, 36176, 39644, 44308, 49742, 50456, 56392, 56848, 65296, 68476, 69377, 77539, 79288, 88616, 99484, 100912, 112784, 119833, 136952, 138754, 155078, 158576, 177232, 188309, 198968, 239666, 273904, 277508, 310156, 376618, 397936, 479332, 555016, 620312, 753236, 958664, 1110032, 1240624, 1318163, 1506472, 1917328, 2636326, 3012944, 5272652, 10545304, 21090608]

約数ペア:

[(1, 21090608), (2, 10545304), (4, 5272652), (7, 3012944), (8, 2636326), (11, 1917328), (14, 1506472), (16, 1318163), (17, 1240624), (19, 1110032), (22, 958664), (28, 753236), (34, 620312), (38, 555016), (44, 479332), (53, 397936), (56, 376618), (68, 310156), (76, 277508), (77, 273904), (88, 239666), (106, 198968), (112, 188309), (119, 177232), (133, 158576), (136, 155078), (152, 138754), (154, 136952), (176, 119833), (187, 112784), (209, 100912), (212, 99484), (238, 88616), (266, 79288), (272, 77539), (304, 69377), (308, 68476), (323, 65296), (371, 56848), (374, 56392), (418, 50456), (424, 49742), (476, 44308), (532, 39644), (583, 36176), (616, 34238), (646, 32648), (742, 28424), (748, 28196), (836, 25228), (848, 24871), (901, 23408), (952, 22154), (1007, 20944), (1064, 19822), (1166, 18088), (1232, 17119), (1292, 16324), (1309, 16112), (1463, 14416), (1484, 14212), (1496, 14098), (1672, 12614), (1802, 11704), (1904, 11077), (2014, 10472), (2128, 9911), (2261, 9328), (2332, 9044), (2584, 8162), (2618, 8056), (2926, 7208), (2968, 7106), (2992, 7049), (3344, 6307), (3553, 5936), (3604, 5852), (4028, 5236), (4081, 5168), (4522, 4664)]