21350800

素因数分解:

$2^4\times 5^2\times {\mathrm{53377}}^1$

素因数の和:53395

約数の個数: 30

約数和(自身を含む): 51296258

約数和(自身を除く): 29945458

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53377, 106754, 213508, 266885, 427016, 533770, 854032, 1067540, 1334425, 2135080, 2668850, 4270160, 5337700, 10675400, 21350800]

約数ペア:

[(1, 21350800), (2, 10675400), (4, 5337700), (5, 4270160), (8, 2668850), (10, 2135080), (16, 1334425), (20, 1067540), (25, 854032), (40, 533770), (50, 427016), (80, 266885), (100, 213508), (200, 106754), (400, 53377)]