15721145013

素因数分解:

$3^1\times 7^1\times {\mathrm{3511}}^1\times {\mathrm{213223}}^1$

素因数の和:216744

約数の個数: 16

約数和(自身を含む): 23962966016

約数和(自身を除く): 8241821003

約数列:

[1, 3, 7, 21, 3511, 10533, 24577, 73731, 213223, 639669, 1492561, 4477683, 748625953, 2245877859, 5240381671, 15721145013]

約数ペア:

[(1, 15721145013), (3, 5240381671), (7, 2245877859), (21, 748625953), (3511, 4477683), (10533, 1492561), (24577, 639669), (73731, 213223)]