20698545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6359}}^1$

素因数の和:6405

約数の個数: 32

約数和(自身を含む): 39075840

約数和(自身を除く): 18377295

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6359, 19077, 31795, 44513, 95385, 133539, 197129, 222565, 591387, 667695, 985645, 1379903, 2956935, 4139709, 6899515, 20698545]

約数ペア:

[(1, 20698545), (3, 6899515), (5, 4139709), (7, 2956935), (15, 1379903), (21, 985645), (31, 667695), (35, 591387), (93, 222565), (105, 197129), (155, 133539), (217, 95385), (465, 44513), (651, 31795), (1085, 19077), (3255, 6359)]