21522007

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:474

約数の個数: 16

約数和(自身を含む): 23990400

約数和(自身を除く): 2468393

約数列:

[1, 13, 41, 149, 271, 533, 1937, 3523, 6109, 11111, 40379, 79417, 144443, 524927, 1655539, 21522007]

約数ペア:

[(1, 21522007), (13, 1655539), (41, 524927), (149, 144443), (271, 79417), (533, 40379), (1937, 11111), (3523, 6109)]