21790236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139681}}^1$

素因数の和:139701

約数の個数: 24

約数和(自身を含む): 54755344

約数和(自身を除く): 32965108

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139681, 279362, 419043, 558724, 838086, 1676172, 1815853, 3631706, 5447559, 7263412, 10895118, 21790236]

約数ペア:

[(1, 21790236), (2, 10895118), (3, 7263412), (4, 5447559), (6, 3631706), (12, 1815853), (13, 1676172), (26, 838086), (39, 558724), (52, 419043), (78, 279362), (156, 139681)]