20201265

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{21377}}^1$

素因数の和:21398

約数の個数: 32

約数和(自身を含む): 41045760

約数和(自身を除く): 20844495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 21377, 64131, 106885, 149639, 192393, 320655, 448917, 577179, 748195, 961965, 1346751, 2244585, 2885895, 4040253, 6733755, 20201265]

約数ペア:

[(1, 20201265), (3, 6733755), (5, 4040253), (7, 2885895), (9, 2244585), (15, 1346751), (21, 961965), (27, 748195), (35, 577179), (45, 448917), (63, 320655), (105, 192393), (135, 149639), (189, 106885), (315, 64131), (945, 21377)]