25220403

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:625

約数の個数: 40

約数和(自身を含む): 41591088

約数和(自身を除く): 16370685

約数列:

[1, 3, 9, 13, 27, 39, 43, 81, 117, 129, 351, 387, 557, 559, 1053, 1161, 1671, 1677, 3483, 5013, 5031, 7241, 15039, 15093, 21723, 23951, 45117, 45279, 65169, 71853, 195507, 215559, 311363, 586521, 646677, 934089, 1940031, 2802267, 8406801, 25220403]

約数ペア:

[(1, 25220403), (3, 8406801), (9, 2802267), (13, 1940031), (27, 934089), (39, 646677), (43, 586521), (81, 311363), (117, 215559), (129, 195507), (351, 71853), (387, 65169), (557, 45279), (559, 45117), (1053, 23951), (1161, 21723), (1671, 15093), (1677, 15039), (3483, 7241), (5013, 5031)]