20810478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{266801}}^1$

素因数の和:266819

約数の個数: 16

約数和(自身を含む): 44822736

約数和(自身を除く): 24012258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 266801, 533602, 800403, 1600806, 3468413, 6936826, 10405239, 20810478]

約数ペア:

[(1, 20810478), (2, 10405239), (3, 6936826), (6, 3468413), (13, 1600806), (26, 800403), (39, 533602), (78, 266801)]