21531340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37123}}^1$

素因数の和:37161

約数の個数: 24

約数和(自身を含む): 46776240

約数和(自身を除く): 25244900

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37123, 74246, 148492, 185615, 371230, 742460, 1076567, 2153134, 4306268, 5382835, 10765670, 21531340]

約数ペア:

[(1, 21531340), (2, 10765670), (4, 5382835), (5, 4306268), (10, 2153134), (20, 1076567), (29, 742460), (58, 371230), (116, 185615), (145, 148492), (290, 74246), (580, 37123)]