20123157807

素因数分解:

$3^8\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{313}}^1$

素因数の和:617

約数の個数: 72

約数和(自身を含む): 31147945920

約数和(自身を除く): 11024788113

約数列:

[1, 3, 9, 27, 41, 81, 123, 239, 243, 313, 369, 717, 729, 939, 1107, 2151, 2187, 2817, 3321, 6453, 6561, 8451, 9799, 9963, 12833, 19359, 25353, 29397, 29889, 38499, 58077, 74807, 76059, 88191, 89667, 115497, 174231, 224421, 228177, 264573, 269001, 346491, 522693, 673263, 684531, 793719, 1039473, 1568079, 2019789, 2053593, 2381157, 3067087, 3118419, 6059367, 7143471, 9201261, 9355257, 18178101, 21430413, 27603783, 28065771, 54534303, 64291239, 82811349, 84197313, 163602909, 248434047, 490808727, 745302141, 2235906423, 6707719269, 20123157807]

約数ペア:

[(1, 20123157807), (3, 6707719269), (9, 2235906423), (27, 745302141), (41, 490808727), (81, 248434047), (123, 163602909), (239, 84197313), (243, 82811349), (313, 64291239), (369, 54534303), (717, 28065771), (729, 27603783), (939, 21430413), (1107, 18178101), (2151, 9355257), (2187, 9201261), (2817, 7143471), (3321, 6059367), (6453, 3118419), (6561, 3067087), (8451, 2381157), (9799, 2053593), (9963, 2019789), (12833, 1568079), (19359, 1039473), (25353, 793719), (29397, 684531), (29889, 673263), (38499, 522693), (58077, 346491), (74807, 269001), (76059, 264573), (88191, 228177), (89667, 224421), (115497, 174231)]