21702730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10691}}^1$

素因数の和:10734

約数の個数: 32

約数和(自身を含む): 46189440

約数和(自身を除く): 24486710

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 10691, 21382, 53455, 74837, 106910, 149674, 310039, 374185, 620078, 748370, 1550195, 2170273, 3100390, 4340546, 10851365, 21702730]

約数ペア:

[(1, 21702730), (2, 10851365), (5, 4340546), (7, 3100390), (10, 2170273), (14, 1550195), (29, 748370), (35, 620078), (58, 374185), (70, 310039), (145, 149674), (203, 106910), (290, 74837), (406, 53455), (1015, 21382), (2030, 10691)]