20613791

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 23617536

約数和(自身を除く): 3003745

約数列:

[1, 11, 31, 61, 341, 671, 991, 1891, 10901, 20801, 30721, 60451, 337931, 664961, 1873981, 20613791]

約数ペア:

[(1, 20613791), (11, 1873981), (31, 664961), (61, 337931), (341, 60451), (671, 30721), (991, 20801), (1891, 10901)]