20969724

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40639}}^1$

素因数の和:40689

約数の個数: 24

約数和(自身を含む): 50068480

約数和(自身を除く): 29098756

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40639, 81278, 121917, 162556, 243834, 487668, 1747477, 3494954, 5242431, 6989908, 10484862, 20969724]

約数ペア:

[(1, 20969724), (2, 10484862), (3, 6989908), (4, 5242431), (6, 3494954), (12, 1747477), (43, 487668), (86, 243834), (129, 162556), (172, 121917), (258, 81278), (516, 40639)]