51018681

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^2\times {\mathrm{229}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 78847680

約数和(自身を除く): 27828999

約数列:

[1, 3, 7, 21, 103, 229, 309, 687, 721, 1603, 2163, 4809, 10609, 23587, 31827, 70761, 74263, 165109, 222789, 495327, 2429461, 7288383, 17006227, 51018681]

約数ペア:

[(1, 51018681), (3, 17006227), (7, 7288383), (21, 2429461), (103, 495327), (229, 222789), (309, 165109), (687, 74263), (721, 70761), (1603, 31827), (2163, 23587), (4809, 10609)]