21461872

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9791}}^1$

素因数の和:9936

約数の個数: 20

約数和(自身を含む): 41890176

約数和(自身を除く): 20428304

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9791, 19582, 39164, 78328, 156656, 1341367, 2682734, 5365468, 10730936, 21461872]

約数ペア:

[(1, 21461872), (2, 10730936), (4, 5365468), (8, 2682734), (16, 1341367), (137, 156656), (274, 78328), (548, 39164), (1096, 19582), (2192, 9791)]