21502953

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1423}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 32877312

約数和(自身を除く): 11374359

約数列:

[1, 3, 9, 23, 69, 73, 207, 219, 657, 1423, 1679, 4269, 5037, 12807, 15111, 32729, 98187, 103879, 294561, 311637, 934911, 2389217, 7167651, 21502953]

約数ペア:

[(1, 21502953), (3, 7167651), (9, 2389217), (23, 934911), (69, 311637), (73, 294561), (207, 103879), (219, 98187), (657, 32729), (1423, 15111), (1679, 12807), (4269, 5037)]