81291285

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{977}}^1$

素因数の和:1074

約数の個数: 36

約数和(自身を含む): 144405612

約数和(自身を除く): 63114327

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 977, 1849, 1935, 2931, 4885, 5547, 8793, 9245, 14655, 16641, 27735, 42011, 43965, 83205, 126033, 210055, 378099, 630165, 1806473, 1890495, 5419419, 9032365, 16258257, 27097095, 81291285]

約数ペア:

[(1, 81291285), (3, 27097095), (5, 16258257), (9, 9032365), (15, 5419419), (43, 1890495), (45, 1806473), (129, 630165), (215, 378099), (387, 210055), (645, 126033), (977, 83205), (1849, 43965), (1935, 42011), (2931, 27735), (4885, 16641), (5547, 14655), (8793, 9245)]