20304963

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1123}}^1$

素因数の和:1184

約数の個数: 36

約数和(自身を含む): 34981128

約数和(自身を除く): 14676165

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 1123, 2009, 2583, 3369, 6027, 7861, 10107, 18081, 23583, 46043, 55027, 70749, 138129, 165081, 322301, 414387, 495243, 966903, 2256107, 2900709, 6768321, 20304963]

約数ペア:

[(1, 20304963), (3, 6768321), (7, 2900709), (9, 2256107), (21, 966903), (41, 495243), (49, 414387), (63, 322301), (123, 165081), (147, 138129), (287, 70749), (369, 55027), (441, 46043), (861, 23583), (1123, 18081), (2009, 10107), (2583, 7861), (3369, 6027)]