31872321

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{823}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 49789376

約数和(自身を除く): 17917055

約数列:

[1, 3, 9, 13, 39, 117, 331, 823, 993, 2469, 2979, 4303, 7407, 10699, 12909, 32097, 38727, 96291, 272413, 817239, 2451717, 3541369, 10624107, 31872321]

約数ペア:

[(1, 31872321), (3, 10624107), (9, 3541369), (13, 2451717), (39, 817239), (117, 272413), (331, 96291), (823, 38727), (993, 32097), (2469, 12909), (2979, 10699), (4303, 7407)]