21000201260

素因数分解:

$2^2\times 5^1\times {\mathrm{16787}}^1\times {\mathrm{62549}}^1$

素因数の和:79345

約数の個数: 24

約数和(自身を含む): 44103754800

約数和(自身を除く): 23103553540

約数列:

[1, 2, 4, 5, 10, 20, 16787, 33574, 62549, 67148, 83935, 125098, 167870, 250196, 312745, 335740, 625490, 1250980, 1050010063, 2100020126, 4200040252, 5250050315, 10500100630, 21000201260]

約数ペア:

[(1, 21000201260), (2, 10500100630), (4, 5250050315), (5, 4200040252), (10, 2100020126), (20, 1050010063), (16787, 1250980), (33574, 625490), (62549, 335740), (67148, 312745), (83935, 250196), (125098, 167870)]