21214425

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6899}}^1$

素因数の和:6953

約数の個数: 24

約数和(自身を含む): 35935200

約数和(自身を除く): 14720775

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6899, 20697, 34495, 103485, 172475, 282859, 517425, 848577, 1414295, 4242885, 7071475, 21214425]

約数ペア:

[(1, 21214425), (3, 7071475), (5, 4242885), (15, 1414295), (25, 848577), (41, 517425), (75, 282859), (123, 172475), (205, 103485), (615, 34495), (1025, 20697), (3075, 6899)]