21790654

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1115

約数の個数: 16

約数和(自身を含む): 33339600

約数和(自身を除く): 11548946

約数列:

[1, 2, 83, 149, 166, 298, 881, 1762, 12367, 24734, 73123, 131269, 146246, 262538, 10895327, 21790654]

約数ペア:

[(1, 21790654), (2, 10895327), (83, 262538), (149, 146246), (166, 131269), (298, 73123), (881, 24734), (1762, 12367)]