18491965

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{2251}}^1$

素因数の和:2340

約数の個数: 16

約数和(自身を含む): 23348736

約数和(自身を除く): 4856771

約数列:

[1, 5, 31, 53, 155, 265, 1643, 2251, 8215, 11255, 69781, 119303, 348905, 596515, 3698393, 18491965]

約数ペア:

[(1, 18491965), (5, 3698393), (31, 596515), (53, 348905), (155, 119303), (265, 69781), (1643, 11255), (2251, 8215)]