20121087

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3121}}^1$

素因数の和:3438

約数の個数: 16

約数和(自身を含む): 30770432

約数和(自身を除く): 10649345

約数列:

[1, 3, 7, 21, 307, 921, 2149, 3121, 6447, 9363, 21847, 65541, 958147, 2874441, 6707029, 20121087]

約数ペア:

[(1, 20121087), (3, 6707029), (7, 2874441), (21, 958147), (307, 65541), (921, 21847), (2149, 9363), (3121, 6447)]