81562959

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{503}}^1$

素因数の和:971

約数の個数: 24

約数和(自身を含む): 121080960

約数和(自身を除く): 39518001

約数列:

[1, 3, 9, 43, 129, 387, 419, 503, 1257, 1509, 3771, 4527, 18017, 21629, 54051, 64887, 162153, 194661, 210757, 632271, 1896813, 9062551, 27187653, 81562959]

約数ペア:

[(1, 81562959), (3, 27187653), (9, 9062551), (43, 1896813), (129, 632271), (387, 210757), (419, 194661), (503, 162153), (1257, 64887), (1509, 54051), (3771, 21629), (4527, 18017)]