20217735

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4831}}^1$

素因数の和:4876

約数の個数: 32

約数和(自身を含む): 37109760

約数和(自身を除く): 16892025

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 135, 155, 279, 465, 837, 1395, 4185, 4831, 14493, 24155, 43479, 72465, 130437, 149761, 217395, 449283, 652185, 748805, 1347849, 2246415, 4043547, 6739245, 20217735]

約数ペア:

[(1, 20217735), (3, 6739245), (5, 4043547), (9, 2246415), (15, 1347849), (27, 748805), (31, 652185), (45, 449283), (93, 217395), (135, 149761), (155, 130437), (279, 72465), (465, 43479), (837, 24155), (1395, 14493), (4185, 4831)]