9989973

素因数分解:

$3^5\times 7^2\times {\mathrm{839}}^1$

素因数の和:868

約数の個数: 36

約数和(自身を含む): 17428320

約数和(自身を除く): 7438347

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 839, 1323, 1701, 2517, 3969, 5873, 7551, 11907, 17619, 22653, 41111, 52857, 67959, 123333, 158571, 203877, 369999, 475713, 1109997, 1427139, 3329991, 9989973]

約数ペア:

[(1, 9989973), (3, 3329991), (7, 1427139), (9, 1109997), (21, 475713), (27, 369999), (49, 203877), (63, 158571), (81, 123333), (147, 67959), (189, 52857), (243, 41111), (441, 22653), (567, 17619), (839, 11907), (1323, 7551), (1701, 5873), (2517, 3969)]