18215631

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3109}}^1$

素因数の和:3156

約数の個数: 32

約数和(自身を含む): 31846400

約数和(自身を除く): 13630769

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3109, 5859, 9327, 21763, 27981, 65289, 83943, 96379, 195867, 289137, 587601, 674653, 867411, 2023959, 2602233, 6071877, 18215631]

約数ペア:

[(1, 18215631), (3, 6071877), (7, 2602233), (9, 2023959), (21, 867411), (27, 674653), (31, 587601), (63, 289137), (93, 195867), (189, 96379), (217, 83943), (279, 65289), (651, 27981), (837, 21763), (1953, 9327), (3109, 5859)]