78465681

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{40177}}^1$

素因数の和:40221

約数の個数: 24

約数和(自身を含む): 133712384

約数和(自身を除く): 55246703

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 40177, 120531, 281239, 361593, 843717, 1245487, 2531151, 3736461, 8718409, 11209383, 26155227, 78465681]

約数ペア:

[(1, 78465681), (3, 26155227), (7, 11209383), (9, 8718409), (21, 3736461), (31, 2531151), (63, 1245487), (93, 843717), (217, 361593), (279, 281239), (651, 120531), (1953, 40177)]