21170200

素因数分解:

$2^3\times 5^2\times {\mathrm{151}}^1\times {\mathrm{701}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 49617360

約数和(自身を除く): 28447160

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 151, 200, 302, 604, 701, 755, 1208, 1402, 1510, 2804, 3020, 3505, 3775, 5608, 6040, 7010, 7550, 14020, 15100, 17525, 28040, 30200, 35050, 70100, 105851, 140200, 211702, 423404, 529255, 846808, 1058510, 2117020, 2646275, 4234040, 5292550, 10585100, 21170200]

約数ペア:

[(1, 21170200), (2, 10585100), (4, 5292550), (5, 4234040), (8, 2646275), (10, 2117020), (20, 1058510), (25, 846808), (40, 529255), (50, 423404), (100, 211702), (151, 140200), (200, 105851), (302, 70100), (604, 35050), (701, 30200), (755, 28040), (1208, 17525), (1402, 15100), (1510, 14020), (2804, 7550), (3020, 7010), (3505, 6040), (3775, 5608)]