21197754

素因数分解:

$2^1\times 3^3\times {\mathrm{79}}^1\times {\mathrm{4969}}^1$

素因数の和:5059

約数の個数: 32

約数和(自身を含む): 47712000

約数和(自身を除く): 26514246

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 158, 237, 474, 711, 1422, 2133, 4266, 4969, 9938, 14907, 29814, 44721, 89442, 134163, 268326, 392551, 785102, 1177653, 2355306, 3532959, 7065918, 10598877, 21197754]

約数ペア:

[(1, 21197754), (2, 10598877), (3, 7065918), (6, 3532959), (9, 2355306), (18, 1177653), (27, 785102), (54, 392551), (79, 268326), (158, 134163), (237, 89442), (474, 44721), (711, 29814), (1422, 14907), (2133, 9938), (4266, 4969)]