21425874

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8731}}^1$

素因数の和:9145

約数の個数: 16

約数和(自身を含む): 42961440

約数和(自身を除く): 21535566

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8731, 17462, 26193, 52386, 3570979, 7141958, 10712937, 21425874]

約数ペア:

[(1, 21425874), (2, 10712937), (3, 7141958), (6, 3570979), (409, 52386), (818, 26193), (1227, 17462), (2454, 8731)]