2171225

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 3243840

約数和(自身を除く): 1072615

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 653, 665, 3265, 3325, 4571, 12407, 16325, 22855, 62035, 86849, 114275, 310175, 434245, 2171225]

約数ペア:

[(1, 2171225), (5, 434245), (7, 310175), (19, 114275), (25, 86849), (35, 62035), (95, 22855), (133, 16325), (175, 12407), (475, 4571), (653, 3325), (665, 3265)]