20581671

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1571}}^1$

素因数の和:1982

約数の個数: 16

約数和(自身を含む): 30031488

約数和(自身を除く): 9449817

約数列:

[1, 3, 11, 33, 397, 1191, 1571, 4367, 4713, 13101, 17281, 51843, 623687, 1871061, 6860557, 20581671]

約数ペア:

[(1, 20581671), (3, 6860557), (11, 1871061), (33, 623687), (397, 51843), (1191, 17281), (1571, 13101), (4367, 4713)]