218870121

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 315318528

約数和(自身を除く): 96448407

約数列:

[1, 3, 17, 51, 97, 151, 291, 293, 453, 879, 1649, 2567, 4947, 4981, 7701, 14647, 14943, 28421, 43941, 44243, 85263, 132729, 248999, 483157, 746997, 752131, 1449471, 2256393, 4291571, 12874713, 72956707, 218870121]

約数ペア:

[(1, 218870121), (3, 72956707), (17, 12874713), (51, 4291571), (97, 2256393), (151, 1449471), (291, 752131), (293, 746997), (453, 483157), (879, 248999), (1649, 132729), (2567, 85263), (4947, 44243), (4981, 43941), (7701, 28421), (14647, 14943)]