20292237

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18947}}^1$

素因数の和:18977

約数の個数: 24

約数和(自身を含む): 35470656

約数和(自身を除く): 15178419

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 18947, 56841, 132629, 170523, 322099, 397887, 966297, 1193661, 2254693, 2898891, 6764079, 20292237]

約数ペア:

[(1, 20292237), (3, 6764079), (7, 2898891), (9, 2254693), (17, 1193661), (21, 966297), (51, 397887), (63, 322099), (119, 170523), (153, 132629), (357, 56841), (1071, 18947)]