21069062735

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{49919}}^1$

素因数の和:50351

約数の個数: 32

約数和(自身を含む): 29904076800

約数和(自身を除く): 8835014065

約数列:

[1, 5, 7, 31, 35, 155, 217, 389, 1085, 1945, 2723, 12059, 13615, 49919, 60295, 84413, 249595, 349433, 422065, 1547489, 1747165, 7737445, 10832423, 19418491, 54162115, 97092455, 135929437, 601973221, 679647185, 3009866105, 4213812547, 21069062735]

約数ペア:

[(1, 21069062735), (5, 4213812547), (7, 3009866105), (31, 679647185), (35, 601973221), (155, 135929437), (217, 97092455), (389, 54162115), (1085, 19418491), (1945, 10832423), (2723, 7737445), (12059, 1747165), (13615, 1547489), (49919, 422065), (60295, 349433), (84413, 249595)]