20980493653

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{4327}}^1$

素因数の和:4661

約数の個数: 32

約数和(自身を含む): 25014316544

約数和(自身を除く): 4033822891

約数列:

[1, 7, 37, 97, 193, 259, 679, 1351, 3589, 4327, 7141, 18721, 25123, 30289, 49987, 131047, 160099, 419719, 692677, 835111, 1120693, 2938033, 4848739, 5845777, 15529603, 30899107, 81005767, 108707221, 216293749, 567040369, 2997213379, 20980493653]

約数ペア:

[(1, 20980493653), (7, 2997213379), (37, 567040369), (97, 216293749), (193, 108707221), (259, 81005767), (679, 30899107), (1351, 15529603), (3589, 5845777), (4327, 4848739), (7141, 2938033), (18721, 1120693), (25123, 835111), (30289, 692677), (49987, 419719), (131047, 160099)]