20897484

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40499}}^1$

素因数の和:40549

約数の個数: 24

約数和(自身を含む): 49896000

約数和(自身を除く): 28998516

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40499, 80998, 121497, 161996, 242994, 485988, 1741457, 3482914, 5224371, 6965828, 10448742, 20897484]

約数ペア:

[(1, 20897484), (2, 10448742), (3, 6965828), (4, 5224371), (6, 3482914), (12, 1741457), (43, 485988), (86, 242994), (129, 161996), (172, 121497), (258, 80998), (516, 40499)]