199971405

素因数分解:

$3^2\times 5^1\times {\mathrm{4443809}}^1$

素因数の和:4443820

約数の個数: 12

約数和(自身を含む): 346617180

約数和(自身を除く): 146645775

約数列:

[1, 3, 5, 9, 15, 45, 4443809, 13331427, 22219045, 39994281, 66657135, 199971405]

約数ペア:

[(1, 199971405), (3, 66657135), (5, 39994281), (9, 22219045), (15, 13331427), (45, 4443809)]