21465656

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{43987}}^1$

素因数の和:44054

約数の個数: 16

約数和(自身を含む): 40908840

約数和(自身を除く): 19443184

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 43987, 87974, 175948, 351896, 2683207, 5366414, 10732828, 21465656]

約数ペア:

[(1, 21465656), (2, 10732828), (4, 5366414), (8, 2683207), (61, 351896), (122, 175948), (244, 87974), (488, 43987)]