28154737

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 6681743

約数列:

[1, 13, 17, 23, 29, 191, 221, 299, 377, 391, 493, 667, 2483, 3247, 4393, 5083, 5539, 6409, 8671, 11339, 42211, 57109, 72007, 74681, 94163, 127397, 147407, 970853, 1224119, 1656161, 2165749, 28154737]

約数ペア:

[(1, 28154737), (13, 2165749), (17, 1656161), (23, 1224119), (29, 970853), (191, 147407), (221, 127397), (299, 94163), (377, 74681), (391, 72007), (493, 57109), (667, 42211), (2483, 11339), (3247, 8671), (4393, 6409), (5083, 5539)]