21621872

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{11959}}^1$

素因数の和:12080

約数の個数: 20

約数和(自身を含む): 42266640

約数和(自身を除く): 20644768

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 11959, 23918, 47836, 95672, 191344, 1351367, 2702734, 5405468, 10810936, 21621872]

約数ペア:

[(1, 21621872), (2, 10810936), (4, 5405468), (8, 2702734), (16, 1351367), (113, 191344), (226, 95672), (452, 47836), (904, 23918), (1808, 11959)]