19955397

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:119

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 15526203

約数列:

[1, 3, 7, 11, 21, 33, 41, 43, 49, 77, 123, 129, 147, 231, 287, 301, 343, 451, 473, 539, 861, 903, 1029, 1353, 1419, 1617, 1763, 2009, 2107, 3157, 3311, 3773, 5289, 6027, 6321, 9471, 9933, 11319, 12341, 14063, 14749, 19393, 22099, 23177, 37023, 42189, 44247, 58179, 66297, 69531, 86387, 135751, 154693, 162239, 259161, 407253, 464079, 486717, 604709, 950257, 1814127, 2850771, 6651799, 19955397]

約数ペア:

[(1, 19955397), (3, 6651799), (7, 2850771), (11, 1814127), (21, 950257), (33, 604709), (41, 486717), (43, 464079), (49, 407253), (77, 259161), (123, 162239), (129, 154693), (147, 135751), (231, 86387), (287, 69531), (301, 66297), (343, 58179), (451, 44247), (473, 42189), (539, 37023), (861, 23177), (903, 22099), (1029, 19393), (1353, 14749), (1419, 14063), (1617, 12341), (1763, 11319), (2009, 9933), (2107, 9471), (3157, 6321), (3311, 6027), (3773, 5289)]