21966680

素因数分解:

$2^3\times 5^1\times {\mathrm{549167}}^1$

素因数の和:549178

約数の個数: 16

約数和(自身を含む): 49425120

約数和(自身を除く): 27458440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549167, 1098334, 2196668, 2745835, 4393336, 5491670, 10983340, 21966680]

約数ペア:

[(1, 21966680), (2, 10983340), (4, 5491670), (5, 4393336), (8, 2745835), (10, 2196668), (20, 1098334), (40, 549167)]