19899090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221101}}^1$

素因数の和:221114

約数の個数: 24

約数和(自身を含む): 51737868

約数和(自身を除く): 31838778

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221101, 442202, 663303, 1105505, 1326606, 1989909, 2211010, 3316515, 3979818, 6633030, 9949545, 19899090]

約数ペア:

[(1, 19899090), (2, 9949545), (3, 6633030), (5, 3979818), (6, 3316515), (9, 2211010), (10, 1989909), (15, 1326606), (18, 1105505), (30, 663303), (45, 442202), (90, 221101)]