1640091551

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{21019}}^1$

素因数の和:21254

約数の個数: 16

約数和(自身を含む): 1912988160

約数和(自身を除く): 272896609

約数列:

[1, 7, 71, 157, 497, 1099, 11147, 21019, 78029, 147133, 1492349, 3299983, 10446443, 23099881, 234298793, 1640091551]

約数ペア:

[(1, 1640091551), (7, 234298793), (71, 23099881), (157, 10446443), (497, 3299983), (1099, 1492349), (11147, 147133), (21019, 78029)]