393939

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1$

素因数の和:76

約数の個数: 36

約数和(自身を含む): 723216

約数和(自身を除く): 329277

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 169, 259, 273, 333, 481, 507, 777, 819, 1183, 1443, 1521, 2331, 3367, 3549, 4329, 6253, 10101, 10647, 18759, 30303, 43771, 56277, 131313, 393939]

約数ペア:

[(1, 393939), (3, 131313), (7, 56277), (9, 43771), (13, 30303), (21, 18759), (37, 10647), (39, 10101), (63, 6253), (91, 4329), (111, 3549), (117, 3367), (169, 2331), (259, 1521), (273, 1443), (333, 1183), (481, 819), (507, 777)]