20859838

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1\times {\mathrm{661}}^1$

素因数の和:1203

約数の個数: 16

約数和(自身を含む): 32411520

約数和(自身を除く): 11551682

約数列:

[1, 2, 31, 62, 509, 661, 1018, 1322, 15779, 20491, 31558, 40982, 336449, 672898, 10429919, 20859838]

約数ペア:

[(1, 20859838), (2, 10429919), (31, 672898), (62, 336449), (509, 40982), (661, 31558), (1018, 20491), (1322, 15779)]