19849904

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30259}}^1$

素因数の和:30308

約数の個数: 20

約数和(自身を含む): 39398520

約数和(自身を除く): 19548616

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30259, 60518, 121036, 242072, 484144, 1240619, 2481238, 4962476, 9924952, 19849904]

約数ペア:

[(1, 19849904), (2, 9924952), (4, 4962476), (8, 2481238), (16, 1240619), (41, 484144), (82, 242072), (164, 121036), (328, 60518), (656, 30259)]