217851473

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{10433}}^1$

素因数の和:10616

約数の個数: 16

約数和(自身を含む): 263771520

約数和(自身を除く): 45920047

約数列:

[1, 7, 19, 133, 157, 1099, 2983, 10433, 20881, 73031, 198227, 1387589, 1637981, 11465867, 31121639, 217851473]

約数ペア:

[(1, 217851473), (7, 31121639), (19, 11465867), (133, 1637981), (157, 1387589), (1099, 198227), (2983, 73031), (10433, 20881)]