21498659

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 28196640

約数和(自身を除く): 6697981

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 1069, 1183, 1547, 2873, 7483, 13897, 18173, 20111, 97279, 127211, 180661, 236249, 1264627, 1653743, 3071237, 21498659]

約数ペア:

[(1, 21498659), (7, 3071237), (13, 1653743), (17, 1264627), (91, 236249), (119, 180661), (169, 127211), (221, 97279), (1069, 20111), (1183, 18173), (1547, 13897), (2873, 7483)]