217872053

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{2819}}^1$

素因数の和:3068

約数の個数: 16

約数和(自身を含む): 254567040

約数和(自身を除く): 36694987

約数列:

[1, 7, 61, 181, 427, 1267, 2819, 11041, 19733, 77287, 171959, 510239, 1203713, 3571673, 31124579, 217872053]

約数ペア:

[(1, 217872053), (7, 31124579), (61, 3571673), (181, 1203713), (427, 510239), (1267, 171959), (2819, 77287), (11041, 19733)]