31509855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 59850336

約数和(自身を除く): 28340481

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 61, 65, 117, 183, 195, 305, 549, 585, 793, 883, 915, 2379, 2649, 2745, 3965, 4415, 7137, 7947, 11479, 11895, 13245, 34437, 35685, 39735, 53863, 57395, 103311, 161589, 172185, 269315, 484767, 516555, 700219, 807945, 2100657, 2423835, 3501095, 6301971, 10503285, 31509855]

約数ペア:

[(1, 31509855), (3, 10503285), (5, 6301971), (9, 3501095), (13, 2423835), (15, 2100657), (39, 807945), (45, 700219), (61, 516555), (65, 484767), (117, 269315), (183, 172185), (195, 161589), (305, 103311), (549, 57395), (585, 53863), (793, 39735), (883, 35685), (915, 34437), (2379, 13245), (2649, 11895), (2745, 11479), (3965, 7947), (4415, 7137)]