221445855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{259001}}^1$

素因数の和:259031

約数の個数: 24

約数和(自身を含む): 404043120

約数和(自身を除く): 182597265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 259001, 777003, 1295005, 2331009, 3885015, 4921019, 11655045, 14763057, 24605095, 44289171, 73815285, 221445855]

約数ペア:

[(1, 221445855), (3, 73815285), (5, 44289171), (9, 24605095), (15, 14763057), (19, 11655045), (45, 4921019), (57, 3885015), (95, 2331009), (171, 1295005), (285, 777003), (855, 259001)]