258789027

素因数分解:

$3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{293}}^1\times {\mathrm{307}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 399877632

約数和(自身を除く): 141088605

約数列:

[1, 3, 7, 21, 137, 293, 307, 411, 879, 921, 959, 2051, 2149, 2877, 6153, 6447, 40141, 42059, 89951, 120423, 126177, 269853, 280987, 294413, 629657, 842961, 883239, 1888971, 12323287, 36969861, 86263009, 258789027]

約数ペア:

[(1, 258789027), (3, 86263009), (7, 36969861), (21, 12323287), (137, 1888971), (293, 883239), (307, 842961), (411, 629657), (879, 294413), (921, 280987), (959, 269853), (2051, 126177), (2149, 120423), (2877, 89951), (6153, 42059), (6447, 40141)]