21553297

素因数分解:

${\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:360

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 1947503

約数列:

[1, 17, 67, 127, 149, 1139, 2159, 2533, 8509, 9983, 18923, 144653, 169711, 321691, 1267841, 21553297]

約数ペア:

[(1, 21553297), (17, 1267841), (67, 321691), (127, 169711), (149, 144653), (1139, 18923), (2159, 9983), (2533, 8509)]