21141290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72901}}^1$

素因数の和:72937

約数の個数: 16

約数和(自身を含む): 39367080

約数和(自身を除く): 18225790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72901, 145802, 364505, 729010, 2114129, 4228258, 10570645, 21141290]

約数ペア:

[(1, 21141290), (2, 10570645), (5, 4228258), (10, 2114129), (29, 729010), (58, 364505), (145, 145802), (290, 72901)]