21527493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{991}}^1$

素因数の和:1564

約数の個数: 16

約数和(自身を含む): 30998016

約数和(自身を除く): 9470523

約数列:

[1, 3, 13, 39, 557, 991, 1671, 2973, 7241, 12883, 21723, 38649, 551987, 1655961, 7175831, 21527493]

約数ペア:

[(1, 21527493), (3, 7175831), (13, 1655961), (39, 551987), (557, 38649), (991, 21723), (1671, 12883), (2973, 7241)]