21205834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47977}}^1$

素因数の和:48009

約数の個数: 16

約数和(自身を含む): 36271368

約数和(自身を除く): 15065534

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 47977, 95954, 623701, 815609, 1247402, 1631218, 10602917, 21205834]

約数ペア:

[(1, 21205834), (2, 10602917), (13, 1631218), (17, 1247402), (26, 815609), (34, 623701), (221, 95954), (442, 47977)]