21306800

素因数分解:

$2^4\times 5^2\times {\mathrm{53267}}^1$

素因数の和:53285

約数の個数: 30

約数和(自身を含む): 51190548

約数和(自身を除く): 29883748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53267, 106534, 213068, 266335, 426136, 532670, 852272, 1065340, 1331675, 2130680, 2663350, 4261360, 5326700, 10653400, 21306800]

約数ペア:

[(1, 21306800), (2, 10653400), (4, 5326700), (5, 4261360), (8, 2663350), (10, 2130680), (16, 1331675), (20, 1065340), (25, 852272), (40, 532670), (50, 426136), (80, 266335), (100, 213068), (200, 106534), (400, 53267)]