21132200

素因数分解:

$2^3\times 5^2\times {\mathrm{157}}^1\times {\mathrm{673}}^1$

素因数の和:846

約数の個数: 48

約数和(自身を含む): 49518780

約数和(自身を除く): 28386580

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 157, 200, 314, 628, 673, 785, 1256, 1346, 1570, 2692, 3140, 3365, 3925, 5384, 6280, 6730, 7850, 13460, 15700, 16825, 26920, 31400, 33650, 67300, 105661, 134600, 211322, 422644, 528305, 845288, 1056610, 2113220, 2641525, 4226440, 5283050, 10566100, 21132200]

約数ペア:

[(1, 21132200), (2, 10566100), (4, 5283050), (5, 4226440), (8, 2641525), (10, 2113220), (20, 1056610), (25, 845288), (40, 528305), (50, 422644), (100, 211322), (157, 134600), (200, 105661), (314, 67300), (628, 33650), (673, 31400), (785, 26920), (1256, 16825), (1346, 15700), (1570, 13460), (2692, 7850), (3140, 6730), (3365, 6280), (3925, 5384)]