20899730

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^2\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 24

約数和(自身を含む): 38181132

約数和(自身を除く): 17281402

約数列:

[1, 2, 5, 10, 103, 197, 206, 394, 515, 985, 1030, 1970, 10609, 20291, 21218, 40582, 53045, 101455, 106090, 202910, 2089973, 4179946, 10449865, 20899730]

約数ペア:

[(1, 20899730), (2, 10449865), (5, 4179946), (10, 2089973), (103, 202910), (197, 106090), (206, 101455), (394, 53045), (515, 40582), (985, 21218), (1030, 20291), (1970, 10609)]