20630673

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6421}}^1$

素因数の和:6454

約数の個数: 32

約数和(自身を含む): 36990720

約数和(自身を除く): 16360047

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 357, 459, 1071, 3213, 6421, 19263, 44947, 57789, 109157, 134841, 173367, 327471, 404523, 764099, 982413, 1213569, 2292297, 2947239, 6876891, 20630673]

約数ペア:

[(1, 20630673), (3, 6876891), (7, 2947239), (9, 2292297), (17, 1213569), (21, 982413), (27, 764099), (51, 404523), (63, 327471), (119, 173367), (153, 134841), (189, 109157), (357, 57789), (459, 44947), (1071, 19263), (3213, 6421)]