21156773

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 23647680

約数和(自身を除く): 2490907

約数列:

[1, 11, 101, 137, 139, 1111, 1507, 1529, 13837, 14039, 19043, 152207, 154429, 209473, 1923343, 21156773]

約数ペア:

[(1, 21156773), (11, 1923343), (101, 209473), (137, 154429), (139, 152207), (1111, 19043), (1507, 14039), (1529, 13837)]