128517531

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{97}}^2\times {\mathrm{157}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 180252720

約数和(自身を除く): 51735189

約数列:

[1, 3, 29, 87, 97, 157, 291, 471, 2813, 4553, 8439, 9409, 13659, 15229, 28227, 45687, 272861, 441641, 818583, 1324923, 1477213, 4431639, 42839177, 128517531]

約数ペア:

[(1, 128517531), (3, 42839177), (29, 4431639), (87, 1477213), (97, 1324923), (157, 818583), (291, 441641), (471, 272861), (2813, 45687), (4553, 28227), (8439, 15229), (9409, 13659)]