21073090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 40201920

約数和(自身を除く): 19128830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 197, 394, 563, 985, 1126, 1970, 2815, 3743, 5630, 7486, 10697, 18715, 21394, 37430, 53485, 106970, 110911, 221822, 554555, 1109110, 2107309, 4214618, 10536545, 21073090]

約数ペア:

[(1, 21073090), (2, 10536545), (5, 4214618), (10, 2107309), (19, 1109110), (38, 554555), (95, 221822), (190, 110911), (197, 106970), (394, 53485), (563, 37430), (985, 21394), (1126, 18715), (1970, 10697), (2815, 7486), (3743, 5630)]