21723902

素因数分解:

$2^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1$

素因数の和:691

約数の個数: 16

約数和(自身を含む): 33048000

約数和(自身を除く): 11324098

約数列:

[1, 2, 149, 269, 271, 298, 538, 542, 40081, 40379, 72899, 80162, 80758, 145798, 10861951, 21723902]

約数ペア:

[(1, 21723902), (2, 10861951), (149, 145798), (269, 80758), (271, 80162), (298, 72899), (538, 40379), (542, 40081)]