20430693

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{431}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 31000320

約数和(自身を除く): 10569627

約数列:

[1, 3, 9, 23, 69, 207, 229, 431, 687, 1293, 2061, 3879, 5267, 9913, 15801, 29739, 47403, 89217, 98699, 296097, 888291, 2270077, 6810231, 20430693]

約数ペア:

[(1, 20430693), (3, 6810231), (9, 2270077), (23, 888291), (69, 296097), (207, 98699), (229, 89217), (431, 47403), (687, 29739), (1293, 15801), (2061, 9913), (3879, 5267)]