21812217

素因数分解:

$3^1\times 7^1\times {\mathrm{887}}^1\times {\mathrm{1171}}^1$

素因数の和:2068

約数の個数: 16

約数和(自身を含む): 33303552

約数和(自身を除く): 11491335

約数列:

[1, 3, 7, 21, 887, 1171, 2661, 3513, 6209, 8197, 18627, 24591, 1038677, 3116031, 7270739, 21812217]

約数ペア:

[(1, 21812217), (3, 7270739), (7, 3116031), (21, 1038677), (887, 24591), (1171, 18627), (2661, 8197), (3513, 6209)]