15989918

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 28486080

約数和(自身を除く): 12496162

約数列:

[1, 2, 7, 14, 41, 82, 89, 178, 287, 313, 574, 623, 626, 1246, 2191, 3649, 4382, 7298, 12833, 25543, 25666, 27857, 51086, 55714, 89831, 179662, 194999, 389998, 1142137, 2284274, 7994959, 15989918]

約数ペア:

[(1, 15989918), (2, 7994959), (7, 2284274), (14, 1142137), (41, 389998), (82, 194999), (89, 179662), (178, 89831), (287, 55714), (313, 51086), (574, 27857), (623, 25666), (626, 25543), (1246, 12833), (2191, 7298), (3649, 4382)]