81901521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1847}}^1$

素因数の和:2245

約数の個数: 24

約数和(自身を含む): 127807680

約数和(自身を除く): 45906159

約数列:

[1, 3, 9, 13, 39, 117, 379, 1137, 1847, 3411, 4927, 5541, 14781, 16623, 24011, 44343, 72033, 216099, 700013, 2100039, 6300117, 9100169, 27300507, 81901521]

約数ペア:

[(1, 81901521), (3, 27300507), (9, 9100169), (13, 6300117), (39, 2100039), (117, 700013), (379, 216099), (1137, 72033), (1847, 44343), (3411, 24011), (4927, 16623), (5541, 14781)]