15838221

素因数分解:

$3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{661}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 24753504

約数和(自身を除く): 8915283

約数列:

[1, 3, 7, 21, 49, 147, 163, 489, 661, 1141, 1983, 3423, 4627, 7987, 13881, 23961, 32389, 97167, 107743, 323229, 754201, 2262603, 5279407, 15838221]

約数ペア:

[(1, 15838221), (3, 5279407), (7, 2262603), (21, 754201), (49, 323229), (147, 107743), (163, 97167), (489, 32389), (661, 23961), (1141, 13881), (1983, 7987), (3423, 4627)]