2005731

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 3727360

約数和(自身を除く): 1721629

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 63, 79, 91, 93, 117, 217, 237, 273, 279, 403, 553, 651, 711, 819, 1027, 1209, 1659, 1953, 2449, 2821, 3081, 3627, 4977, 7189, 7347, 8463, 9243, 17143, 21567, 22041, 25389, 31837, 51429, 64701, 95511, 154287, 222859, 286533, 668577, 2005731]

約数ペア:

[(1, 2005731), (3, 668577), (7, 286533), (9, 222859), (13, 154287), (21, 95511), (31, 64701), (39, 51429), (63, 31837), (79, 25389), (91, 22041), (93, 21567), (117, 17143), (217, 9243), (237, 8463), (273, 7347), (279, 7189), (403, 4977), (553, 3627), (651, 3081), (711, 2821), (819, 2449), (1027, 1953), (1209, 1659)]