20631228

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{39983}}^1$

素因数の和:40033

約数の個数: 24

約数和(自身を含む): 49260288

約数和(自身を除く): 28629060

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 39983, 79966, 119949, 159932, 239898, 479796, 1719269, 3438538, 5157807, 6877076, 10315614, 20631228]

約数ペア:

[(1, 20631228), (2, 10315614), (3, 6877076), (4, 5157807), (6, 3438538), (12, 1719269), (43, 479796), (86, 239898), (129, 159932), (172, 119949), (258, 79966), (516, 39983)]