20154827

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{613}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 26038512

約数和(自身を除く): 5883685

約数列:

[1, 7, 11, 49, 61, 77, 427, 539, 613, 671, 2989, 4291, 4697, 6743, 30037, 32879, 37393, 47201, 261751, 330407, 411323, 1832257, 2879261, 20154827]

約数ペア:

[(1, 20154827), (7, 2879261), (11, 1832257), (49, 411323), (61, 330407), (77, 261751), (427, 47201), (539, 37393), (613, 32879), (671, 30037), (2989, 6743), (4291, 4697)]