21248799

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{49531}}^1$

素因数の和:49558

約数の個数: 16

約数和(自身を含む): 33285504

約数和(自身を除く): 12036705

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 49531, 148593, 544841, 643903, 1634523, 1931709, 7082933, 21248799]

約数ペア:

[(1, 21248799), (3, 7082933), (11, 1931709), (13, 1634523), (33, 643903), (39, 544841), (143, 148593), (429, 49531)]