21278736

素因数分解:

$2^4\times 3^2\times {\mathrm{147769}}^1$

素因数の和:147783

約数の個数: 30

約数和(自身を含む): 59551310

約数和(自身を除く): 38272574

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147769, 295538, 443307, 591076, 886614, 1182152, 1329921, 1773228, 2364304, 2659842, 3546456, 5319684, 7092912, 10639368, 21278736]

約数ペア:

[(1, 21278736), (2, 10639368), (3, 7092912), (4, 5319684), (6, 3546456), (8, 2659842), (9, 2364304), (12, 1773228), (16, 1329921), (18, 1182152), (24, 886614), (36, 591076), (48, 443307), (72, 295538), (144, 147769)]