21666023

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 24372480

約数和(自身を除く): 2706457

約数列:

[1, 19, 23, 43, 437, 817, 989, 1153, 18791, 21907, 26519, 49579, 503861, 942001, 1140317, 21666023]

約数ペア:

[(1, 21666023), (19, 1140317), (23, 942001), (43, 503861), (437, 49579), (817, 26519), (989, 21907), (1153, 18791)]