646857406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1\times {\mathrm{20443}}^1$

素因数の和:21675

約数の個数: 16

約数和(自身を含む): 1045833264

約数和(自身を除く): 398975858

約数列:

[1, 2, 13, 26, 1217, 2434, 15821, 20443, 31642, 40886, 265759, 531518, 24879131, 49758262, 323428703, 646857406]

約数ペア:

[(1, 646857406), (2, 323428703), (13, 49758262), (26, 24879131), (1217, 531518), (2434, 265759), (15821, 40886), (20443, 31642)]