31487481

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{733}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 49089920

約数和(自身を除く): 17602439

約数列:

[1, 3, 9, 27, 37, 43, 111, 129, 333, 387, 733, 999, 1161, 1591, 2199, 4773, 6597, 14319, 19791, 27121, 31519, 42957, 81363, 94557, 244089, 283671, 732267, 851013, 1166203, 3498609, 10495827, 31487481]

約数ペア:

[(1, 31487481), (3, 10495827), (9, 3498609), (27, 1166203), (37, 851013), (43, 732267), (111, 283671), (129, 244089), (333, 94557), (387, 81363), (733, 42957), (999, 31519), (1161, 27121), (1591, 19791), (2199, 14319), (4773, 6597)]