81431508

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{157813}}^1$

素因数の和:157863

約数の個数: 24

約数和(自身を含む): 194426848

約数和(自身を除く): 112995340

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 157813, 315626, 473439, 631252, 946878, 1893756, 6785959, 13571918, 20357877, 27143836, 40715754, 81431508]

約数ペア:

[(1, 81431508), (2, 40715754), (3, 27143836), (4, 20357877), (6, 13571918), (12, 6785959), (43, 1893756), (86, 946878), (129, 631252), (172, 473439), (258, 315626), (516, 157813)]