21705856

素因数分解:

$2^7\times {\mathrm{67}}^1\times {\mathrm{2531}}^1$

素因数の和:2612

約数の個数: 32

約数和(自身を含む): 43904880

約数和(自身を除く): 22199024

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 268, 536, 1072, 2144, 2531, 4288, 5062, 8576, 10124, 20248, 40496, 80992, 161984, 169577, 323968, 339154, 678308, 1356616, 2713232, 5426464, 10852928, 21705856]

約数ペア:

[(1, 21705856), (2, 10852928), (4, 5426464), (8, 2713232), (16, 1356616), (32, 678308), (64, 339154), (67, 323968), (128, 169577), (134, 161984), (268, 80992), (536, 40496), (1072, 20248), (2144, 10124), (2531, 8576), (4288, 5062)]