1221397521

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{1408763}}^1$

素因数の和:1408800

約数の個数: 12

約数和(自身を含む): 1729962192

約数和(自身を除く): 508564671

約数列:

[1, 3, 17, 51, 289, 867, 1408763, 4226289, 23948971, 71846913, 407132507, 1221397521]

約数ペア:

[(1, 1221397521), (3, 407132507), (17, 71846913), (51, 23948971), (289, 4226289), (867, 1408763)]