20931421105

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{818113}}^1$

素因数の和:818185

約数の個数: 32

約数和(自身を含む): 31101421824

約数和(自身を除く): 10170000719

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 731, 1505, 3655, 5117, 25585, 818113, 4090565, 5726791, 13907921, 28633955, 35178859, 69539605, 97355447, 175894295, 246252013, 486777235, 598040603, 1231260065, 2990203015, 4186284221, 20931421105]

約数ペア:

[(1, 20931421105), (5, 4186284221), (7, 2990203015), (17, 1231260065), (35, 598040603), (43, 486777235), (85, 246252013), (119, 175894295), (215, 97355447), (301, 69539605), (595, 35178859), (731, 28633955), (1505, 13907921), (3655, 5726791), (5117, 4090565), (25585, 818113)]