21000618165

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60871357}}^1$

素因数の和:60871388

約数の個数: 16

約数和(自身を含む): 35061902208

約数和(自身を除く): 14061284043

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 60871357, 182614071, 304356785, 913070355, 1400041211, 4200123633, 7000206055, 21000618165]

約数ペア:

[(1, 21000618165), (3, 7000206055), (5, 4200123633), (15, 1400041211), (23, 913070355), (69, 304356785), (115, 182614071), (345, 60871357)]