21818916879

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1\times {\mathrm{809}}^1$

素因数の和:1471

約数の個数: 32

約数和(自身を含む): 29574305280

約数和(自身を除く): 7755388401

約数列:

[1, 3, 137, 211, 311, 411, 633, 809, 933, 2427, 28907, 42607, 65621, 86721, 110833, 127821, 170699, 196863, 251599, 332499, 512097, 754797, 8990077, 23385763, 26970231, 34469063, 53087389, 70157289, 103407189, 159262167, 7272972293, 21818916879]

約数ペア:

[(1, 21818916879), (3, 7272972293), (137, 159262167), (211, 103407189), (311, 70157289), (411, 53087389), (633, 34469063), (809, 26970231), (933, 23385763), (2427, 8990077), (28907, 754797), (42607, 512097), (65621, 332499), (86721, 251599), (110833, 196863), (127821, 170699)]