21523359

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4561}}^1$

素因数の和:4599

約数の個数: 24

約数和(自身を含む): 33977776

約数和(自身を除く): 12454417

約数列:

[1, 3, 11, 13, 33, 39, 121, 143, 363, 429, 1573, 4561, 4719, 13683, 50171, 59293, 150513, 177879, 551881, 652223, 1655643, 1956669, 7174453, 21523359]

約数ペア:

[(1, 21523359), (3, 7174453), (11, 1956669), (13, 1655643), (33, 652223), (39, 551881), (121, 177879), (143, 150513), (363, 59293), (429, 50171), (1573, 13683), (4561, 4719)]