21034810

素因数分解:

$2^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2153}}^1$

素因数の和:3137

約数の個数: 16

約数和(自身を含む): 37919016

約数和(自身を除く): 16884206

約数列:

[1, 2, 5, 10, 977, 1954, 2153, 4306, 4885, 9770, 10765, 21530, 2103481, 4206962, 10517405, 21034810]

約数ペア:

[(1, 21034810), (2, 10517405), (5, 4206962), (10, 2103481), (977, 21530), (1954, 10765), (2153, 9770), (4306, 4885)]