19648779

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 26676000

約数和(自身を除く): 7027221

約数列:

[1, 3, 113, 149, 339, 389, 447, 1167, 16837, 43957, 50511, 57961, 131871, 173883, 6549593, 19648779]

約数ペア:

[(1, 19648779), (3, 6549593), (113, 173883), (149, 131871), (339, 57961), (389, 50511), (447, 43957), (1167, 16837)]