20012391

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10247}}^1$

素因数の和:10291

約数の個数: 24

約数和(自身を含む): 34105344

約数和(自身を除く): 14092953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10247, 30741, 71729, 92223, 215187, 317657, 645561, 952971, 2223599, 2858913, 6670797, 20012391]

約数ペア:

[(1, 20012391), (3, 6670797), (7, 2858913), (9, 2223599), (21, 952971), (31, 645561), (63, 317657), (93, 215187), (217, 92223), (279, 71729), (651, 30741), (1953, 10247)]