19708715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9781}}^1$

素因数の和:9830

約数の個数: 16

約数和(自身を含む): 26294016

約数和(自身を除く): 6585301

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9781, 48905, 127153, 303211, 635765, 1516055, 3941743, 19708715]

約数ペア:

[(1, 19708715), (5, 3941743), (13, 1516055), (31, 635765), (65, 303211), (155, 127153), (403, 48905), (2015, 9781)]