21283129

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1777}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 25603200

約数和(自身を除く): 4320071

約数列:

[1, 7, 29, 59, 203, 413, 1711, 1777, 11977, 12439, 51533, 104843, 360731, 733901, 3040447, 21283129]

約数ペア:

[(1, 21283129), (7, 3040447), (29, 733901), (59, 360731), (203, 104843), (413, 51533), (1711, 12439), (1777, 11977)]