21969211

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1230

約数の個数: 16

約数和(自身を含む): 25221600

約数和(自身を除く): 3252389

約数列:

[1, 11, 29, 61, 319, 671, 1129, 1769, 12419, 19459, 32741, 68869, 360151, 757559, 1997201, 21969211]

約数ペア:

[(1, 21969211), (11, 1997201), (29, 757559), (61, 360151), (319, 68869), (671, 32741), (1129, 19459), (1769, 12419)]