21885513

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13687}}^1$

素因数の和:13744

約数の個数: 16

約数和(自身を含む): 32194176

約数和(自身を除く): 10308663

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13687, 41061, 177931, 533793, 561167, 1683501, 7295171, 21885513]

約数ペア:

[(1, 21885513), (3, 7295171), (13, 1683501), (39, 561167), (41, 533793), (123, 177931), (533, 41061), (1599, 13687)]