258804945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{821603}}^1$

素因数の和:821621

約数の個数: 24

約数和(自身を含む): 512680896

約数和(自身を除く): 253875951

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 821603, 2464809, 4108015, 5751221, 7394427, 12324045, 17253663, 28756105, 36972135, 51760989, 86268315, 258804945]

約数ペア:

[(1, 258804945), (3, 86268315), (5, 51760989), (7, 36972135), (9, 28756105), (15, 17253663), (21, 12324045), (35, 7394427), (45, 5751221), (63, 4108015), (105, 2464809), (315, 821603)]