81330705

素因数分解:

$3^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3469}}^1$

素因数の和:4001

約数の個数: 24

約数和(自身を含む): 141284520

約数和(自身を除く): 59953815

約数列:

[1, 3, 5, 9, 15, 45, 521, 1563, 2605, 3469, 4689, 7815, 10407, 17345, 23445, 31221, 52035, 156105, 1807349, 5422047, 9036745, 16266141, 27110235, 81330705]

約数ペア:

[(1, 81330705), (3, 27110235), (5, 16266141), (9, 9036745), (15, 5422047), (45, 1807349), (521, 156105), (1563, 52035), (2605, 31221), (3469, 23445), (4689, 17345), (7815, 10407)]