643860483

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{18661}}^1$

素因数の和:18755

約数の個数: 32

約数和(自身を含む): 1031933952

約数和(自身を除く): 388073469

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 651, 1113, 1643, 4929, 11501, 18661, 34503, 55983, 130627, 391881, 578491, 989033, 1735473, 2967099, 4049437, 6923231, 12148311, 20769693, 30660023, 91980069, 214620161, 643860483]

約数ペア:

[(1, 643860483), (3, 214620161), (7, 91980069), (21, 30660023), (31, 20769693), (53, 12148311), (93, 6923231), (159, 4049437), (217, 2967099), (371, 1735473), (651, 989033), (1113, 578491), (1643, 391881), (4929, 130627), (11501, 55983), (18661, 34503)]