21265617

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1\times {\mathrm{1069}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 29960000

約数和(自身を除く): 8694383

約数列:

[1, 3, 19, 57, 349, 1047, 1069, 3207, 6631, 19893, 20311, 60933, 373081, 1119243, 7088539, 21265617]

約数ペア:

[(1, 21265617), (3, 7088539), (19, 1119243), (57, 373081), (349, 60933), (1047, 20311), (1069, 19893), (3207, 6631)]