21353868

素因数分解:

$2^2\times 3^7\times {\mathrm{2441}}^1$

素因数の和:2466

約数の個数: 48

約数和(自身を含む): 56068320

約数和(自身を除く): 34714452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2187, 2441, 2916, 4374, 4882, 7323, 8748, 9764, 14646, 21969, 29292, 43938, 65907, 87876, 131814, 197721, 263628, 395442, 593163, 790884, 1186326, 1779489, 2372652, 3558978, 5338467, 7117956, 10676934, 21353868]

約数ペア:

[(1, 21353868), (2, 10676934), (3, 7117956), (4, 5338467), (6, 3558978), (9, 2372652), (12, 1779489), (18, 1186326), (27, 790884), (36, 593163), (54, 395442), (81, 263628), (108, 197721), (162, 131814), (243, 87876), (324, 65907), (486, 43938), (729, 29292), (972, 21969), (1458, 14646), (2187, 9764), (2441, 8748), (2916, 7323), (4374, 4882)]