21102274

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{3727}}^1$

素因数の和:3897

約数の個数: 16

約数和(自身を含む): 33552000

約数和(自身を除く): 12449726

約数列:

[1, 2, 19, 38, 149, 298, 2831, 3727, 5662, 7454, 70813, 141626, 555323, 1110646, 10551137, 21102274]

約数ペア:

[(1, 21102274), (2, 10551137), (19, 1110646), (38, 555323), (149, 141626), (298, 70813), (2831, 7454), (3727, 5662)]