21352400

素因数分解:

$2^4\times 5^2\times {\mathrm{53381}}^1$

素因数の和:53399

約数の個数: 30

約数和(自身を含む): 51300102

約数和(自身を除く): 29947702

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53381, 106762, 213524, 266905, 427048, 533810, 854096, 1067620, 1334525, 2135240, 2669050, 4270480, 5338100, 10676200, 21352400]

約数ペア:

[(1, 21352400), (2, 10676200), (4, 5338100), (5, 4270480), (8, 2669050), (10, 2135240), (16, 1334525), (20, 1067620), (25, 854096), (40, 533810), (50, 427048), (80, 266905), (100, 213524), (200, 106762), (400, 53381)]