21346040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14423}}^1$

素因数の和:14471

約数の個数: 32

約数和(自身を含む): 49330080

約数和(自身を除く): 27984040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14423, 28846, 57692, 72115, 115384, 144230, 288460, 533651, 576920, 1067302, 2134604, 2668255, 4269208, 5336510, 10673020, 21346040]

約数ペア:

[(1, 21346040), (2, 10673020), (4, 5336510), (5, 4269208), (8, 2668255), (10, 2134604), (20, 1067302), (37, 576920), (40, 533651), (74, 288460), (148, 144230), (185, 115384), (296, 72115), (370, 57692), (740, 28846), (1480, 14423)]