21132140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22481}}^1$

素因数の和:22537

約数の個数: 24

約数和(自身を含む): 45323712

約数和(自身を除く): 24191572

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22481, 44962, 89924, 112405, 224810, 449620, 1056607, 2113214, 4226428, 5283035, 10566070, 21132140]

約数ペア:

[(1, 21132140), (2, 10566070), (4, 5283035), (5, 4226428), (10, 2113214), (20, 1056607), (47, 449620), (94, 224810), (188, 112405), (235, 89924), (470, 44962), (940, 22481)]