19860955

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{503}}^1$

素因数の和:710

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 4633445

約数列:

[1, 5, 53, 149, 265, 503, 745, 2515, 7897, 26659, 39485, 74947, 133295, 374735, 3972191, 19860955]

約数ペア:

[(1, 19860955), (5, 3972191), (53, 374735), (149, 133295), (265, 74947), (503, 39485), (745, 26659), (2515, 7897)]