19715631

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 10621137

約数列:

[1, 3, 13, 17, 39, 51, 131, 221, 227, 393, 663, 681, 1703, 2227, 2951, 3859, 5109, 6681, 8853, 11577, 28951, 29737, 50167, 86853, 89211, 150501, 386581, 505529, 1159743, 1516587, 6571877, 19715631]

約数ペア:

[(1, 19715631), (3, 6571877), (13, 1516587), (17, 1159743), (39, 505529), (51, 386581), (131, 150501), (221, 89211), (227, 86853), (393, 50167), (663, 29737), (681, 28951), (1703, 11577), (2227, 8853), (2951, 6681), (3859, 5109)]