21325730

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{487}}^1$

素因数の和:674

約数の個数: 32

約数和(自身を含む): 40055040

約数和(自身を除く): 18729310

約数列:

[1, 2, 5, 10, 29, 58, 145, 151, 290, 302, 487, 755, 974, 1510, 2435, 4379, 4870, 8758, 14123, 21895, 28246, 43790, 70615, 73537, 141230, 147074, 367685, 735370, 2132573, 4265146, 10662865, 21325730]

約数ペア:

[(1, 21325730), (2, 10662865), (5, 4265146), (10, 2132573), (29, 735370), (58, 367685), (145, 147074), (151, 141230), (290, 73537), (302, 70615), (487, 43790), (755, 28246), (974, 21895), (1510, 14123), (2435, 8758), (4379, 4870)]