21408056

素因数分解:

$2^3\times {\mathrm{569}}^1\times {\mathrm{4703}}^1$

素因数の和:5278

約数の個数: 16

約数和(自身を含む): 40219200

約数和(自身を除く): 18811144

約数列:

[1, 2, 4, 8, 569, 1138, 2276, 4552, 4703, 9406, 18812, 37624, 2676007, 5352014, 10704028, 21408056]

約数ペア:

[(1, 21408056), (2, 10704028), (4, 5352014), (8, 2676007), (569, 37624), (1138, 18812), (2276, 9406), (4552, 4703)]