20907764

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1637}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 38158848

約数和(自身を除く): 17251084

約数列:

[1, 2, 4, 31, 62, 103, 124, 206, 412, 1637, 3193, 3274, 6386, 6548, 12772, 50747, 101494, 168611, 202988, 337222, 674444, 5226941, 10453882, 20907764]

約数ペア:

[(1, 20907764), (2, 10453882), (4, 5226941), (31, 674444), (62, 337222), (103, 202988), (124, 168611), (206, 101494), (412, 50747), (1637, 12772), (3193, 6548), (3274, 6386)]