21062620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28463}}^1$

素因数の和:28509

約数の個数: 24

約数和(自身を含む): 45428544

約数和(自身を除く): 24365924

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28463, 56926, 113852, 142315, 284630, 569260, 1053131, 2106262, 4212524, 5265655, 10531310, 21062620]

約数ペア:

[(1, 21062620), (2, 10531310), (4, 5265655), (5, 4212524), (10, 2106262), (20, 1053131), (37, 569260), (74, 284630), (148, 142315), (185, 113852), (370, 56926), (740, 28463)]