21819976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160441}}^1$

素因数の和:160464

約数の個数: 16

約数和(自身を含む): 43319340

約数和(自身を除く): 21499364

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160441, 320882, 641764, 1283528, 2727497, 5454994, 10909988, 21819976]

約数ペア:

[(1, 21819976), (2, 10909988), (4, 5454994), (8, 2727497), (17, 1283528), (34, 641764), (68, 320882), (136, 160441)]