211319311

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^3$

素因数の和:216

約数の個数: 24

約数和(自身を含む): 263070960

約数和(自身を除く): 51751649

約数列:

[1, 7, 19, 49, 61, 133, 427, 931, 1159, 2989, 3721, 8113, 26047, 56791, 70699, 182329, 226981, 494893, 1588867, 3464251, 4312639, 11122069, 30188473, 211319311]

約数ペア:

[(1, 211319311), (7, 30188473), (19, 11122069), (49, 4312639), (61, 3464251), (133, 1588867), (427, 494893), (931, 226981), (1159, 182329), (2989, 70699), (3721, 56791), (8113, 26047)]