656721117

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{19157}}^1$

素因数の和:19469

約数の個数: 24

約数和(自身を含む): 1025106264

約数和(自身を除く): 368385147

約数列:

[1, 3, 9, 13, 39, 117, 293, 879, 2637, 3809, 11427, 19157, 34281, 57471, 172413, 249041, 747123, 2241369, 5613001, 16839003, 50517009, 72969013, 218907039, 656721117]

約数ペア:

[(1, 656721117), (3, 218907039), (9, 72969013), (13, 50517009), (39, 16839003), (117, 5613001), (293, 2241369), (879, 747123), (2637, 249041), (3809, 172413), (11427, 57471), (19157, 34281)]