20254563

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3457}}^1$

素因数の和:3504

約数の個数: 32

約数和(自身を含む): 35409920

約数和(自身を除く): 15155357

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3457, 5859, 10371, 24199, 31113, 72597, 93339, 107167, 217791, 321501, 653373, 750169, 964503, 2250507, 2893509, 6751521, 20254563]

約数ペア:

[(1, 20254563), (3, 6751521), (7, 2893509), (9, 2250507), (21, 964503), (27, 750169), (31, 653373), (63, 321501), (93, 217791), (189, 107167), (217, 93339), (279, 72597), (651, 31113), (837, 24199), (1953, 10371), (3457, 5859)]