21630511

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1183

約数の個数: 24

約数和(自身を含む): 27825120

約数和(自身を除く): 6194609

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1127, 1129, 2737, 7903, 19159, 19193, 25967, 55321, 134351, 181769, 441439, 940457, 1272383, 3090073, 21630511]

約数ペア:

[(1, 21630511), (7, 3090073), (17, 1272383), (23, 940457), (49, 441439), (119, 181769), (161, 134351), (391, 55321), (833, 25967), (1127, 19193), (1129, 19159), (2737, 7903)]