639402

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{1747}}^1$

素因数の和:1813

約数の個数: 16

約数和(自身を含む): 1300512

約数和(自身を除く): 661110

約数列:

[1, 2, 3, 6, 61, 122, 183, 366, 1747, 3494, 5241, 10482, 106567, 213134, 319701, 639402]

約数ペア:

[(1, 639402), (2, 319701), (3, 213134), (6, 106567), (61, 10482), (122, 5241), (183, 3494), (366, 1747)]