21274416

素因数分解:

$2^4\times 3^2\times {\mathrm{147739}}^1$

素因数の和:147753

約数の個数: 30

約数和(自身を含む): 59539220

約数和(自身を除く): 38264804

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147739, 295478, 443217, 590956, 886434, 1181912, 1329651, 1772868, 2363824, 2659302, 3545736, 5318604, 7091472, 10637208, 21274416]

約数ペア:

[(1, 21274416), (2, 10637208), (3, 7091472), (4, 5318604), (6, 3545736), (8, 2659302), (9, 2363824), (12, 1772868), (16, 1329651), (18, 1181912), (24, 886434), (36, 590956), (48, 443217), (72, 295478), (144, 147739)]