21020303359

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{47777}}^1$

素因数の和:47895

約数の個数: 32

約数和(自身を含む): 25098356736

約数和(自身を除く): 4078053377

約数列:

[1, 11, 23, 37, 47, 253, 407, 517, 851, 1081, 1739, 9361, 11891, 19129, 39997, 47777, 439967, 525547, 1098871, 1767749, 2245519, 12087581, 19445239, 24700709, 40658227, 51646937, 83084203, 447240497, 568116307, 913926233, 1910936669, 21020303359]

約数ペア:

[(1, 21020303359), (11, 1910936669), (23, 913926233), (37, 568116307), (47, 447240497), (253, 83084203), (407, 51646937), (517, 40658227), (851, 24700709), (1081, 19445239), (1739, 12087581), (9361, 2245519), (11891, 1767749), (19129, 1098871), (39997, 525547), (47777, 439967)]