21201740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4093}}^1$

素因数の和:4146

約数の個数: 48

約数和(自身を含む): 52272192

約数和(自身を除く): 31070452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 4093, 5180, 8186, 16372, 20465, 28651, 40930, 57302, 81860, 114604, 143255, 151441, 286510, 302882, 573020, 605764, 757205, 1060087, 1514410, 2120174, 3028820, 4240348, 5300435, 10600870, 21201740]

約数ペア:

[(1, 21201740), (2, 10600870), (4, 5300435), (5, 4240348), (7, 3028820), (10, 2120174), (14, 1514410), (20, 1060087), (28, 757205), (35, 605764), (37, 573020), (70, 302882), (74, 286510), (140, 151441), (148, 143255), (185, 114604), (259, 81860), (370, 57302), (518, 40930), (740, 28651), (1036, 20465), (1295, 16372), (2590, 8186), (4093, 5180)]