20609235

素因数分解:

$3^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 37298976

約数和(自身を除く): 16689741

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 151, 337, 405, 453, 755, 1011, 1359, 1685, 2265, 3033, 4077, 5055, 6795, 9099, 12231, 15165, 20385, 27297, 45495, 50887, 61155, 136485, 152661, 254435, 457983, 763305, 1373949, 2289915, 4121847, 6869745, 20609235]

約数ペア:

[(1, 20609235), (3, 6869745), (5, 4121847), (9, 2289915), (15, 1373949), (27, 763305), (45, 457983), (81, 254435), (135, 152661), (151, 136485), (337, 61155), (405, 50887), (453, 45495), (755, 27297), (1011, 20385), (1359, 15165), (1685, 12231), (2265, 9099), (3033, 6795), (4077, 5055)]