21641060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154579}}^1$

素因数の和:154595

約数の個数: 24

約数和(自身を含む): 51938880

約数和(自身を除く): 30297820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154579, 309158, 618316, 772895, 1082053, 1545790, 2164106, 3091580, 4328212, 5410265, 10820530, 21641060]

約数ペア:

[(1, 21641060), (2, 10820530), (4, 5410265), (5, 4328212), (7, 3091580), (10, 2164106), (14, 1545790), (20, 1082053), (28, 772895), (35, 618316), (70, 309158), (140, 154579)]