18690939

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 30032640

約数和(自身を除く): 11341701

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 947, 1161, 2193, 2841, 6579, 8523, 16099, 19737, 25569, 40721, 48297, 122163, 144891, 366489, 434673, 692257, 1099467, 2076771, 6230313, 18690939]

約数ペア:

[(1, 18690939), (3, 6230313), (9, 2076771), (17, 1099467), (27, 692257), (43, 434673), (51, 366489), (129, 144891), (153, 122163), (387, 48297), (459, 40721), (731, 25569), (947, 19737), (1161, 16099), (2193, 8523), (2841, 6579)]