21336230

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2153}}^1$

素因数の和:3151

約数の個数: 16

約数和(自身を含む): 38461824

約数和(自身を除く): 17125594

約数列:

[1, 2, 5, 10, 991, 1982, 2153, 4306, 4955, 9910, 10765, 21530, 2133623, 4267246, 10668115, 21336230]

約数ペア:

[(1, 21336230), (2, 10668115), (5, 4267246), (10, 2133623), (991, 21530), (1982, 10765), (2153, 9910), (4306, 4955)]