20121120271

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{655219}}^1$

素因数の和:655374

約数の個数: 16

約数和(自身を含む): 23776623360

約数和(自身を除く): 3655503089

約数列:

[1, 7, 41, 107, 287, 749, 4387, 30709, 655219, 4586533, 26863979, 70108433, 188047853, 490759031, 2874445753, 20121120271]

約数ペア:

[(1, 20121120271), (7, 2874445753), (41, 490759031), (107, 188047853), (287, 70108433), (749, 26863979), (4387, 4586533), (30709, 655219)]