13220571

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{613}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 22005760

約数和(自身を除く): 8785189

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 237, 273, 553, 613, 1027, 1659, 1839, 3081, 4291, 7189, 7969, 12873, 21567, 23907, 48427, 55783, 145281, 167349, 338989, 629551, 1016967, 1888653, 4406857, 13220571]

約数ペア:

[(1, 13220571), (3, 4406857), (7, 1888653), (13, 1016967), (21, 629551), (39, 338989), (79, 167349), (91, 145281), (237, 55783), (273, 48427), (553, 23907), (613, 21567), (1027, 12873), (1659, 7969), (1839, 7189), (3081, 4291)]