20403728

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24061}}^1$

素因数の和:24122

約数の個数: 20

約数和(自身を含む): 40279788

約数和(自身を除く): 19876060

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24061, 48122, 96244, 192488, 384976, 1275233, 2550466, 5100932, 10201864, 20403728]

約数ペア:

[(1, 20403728), (2, 10201864), (4, 5100932), (8, 2550466), (16, 1275233), (53, 384976), (106, 192488), (212, 96244), (424, 48122), (848, 24061)]