19998238

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{4297}}^1$

素因数の和:4491

約数の個数: 16

約数和(自身を含む): 32492880

約数和(自身を除く): 12494642

約数列:

[1, 2, 13, 26, 179, 358, 2327, 4297, 4654, 8594, 55861, 111722, 769163, 1538326, 9999119, 19998238]

約数ペア:

[(1, 19998238), (2, 9999119), (13, 1538326), (26, 769163), (179, 111722), (358, 55861), (2327, 8594), (4297, 4654)]