25785123

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 43819776

約数和(自身を除く): 18034653

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 103, 131, 147, 273, 309, 393, 637, 721, 917, 1339, 1703, 1911, 2163, 2751, 4017, 5047, 5109, 6419, 9373, 11921, 13493, 15141, 19257, 28119, 35763, 40479, 65611, 83447, 94451, 175409, 196833, 250341, 283353, 526227, 661157, 1227863, 1983471, 3683589, 8595041, 25785123]

約数ペア:

[(1, 25785123), (3, 8595041), (7, 3683589), (13, 1983471), (21, 1227863), (39, 661157), (49, 526227), (91, 283353), (103, 250341), (131, 196833), (147, 175409), (273, 94451), (309, 83447), (393, 65611), (637, 40479), (721, 35763), (917, 28119), (1339, 19257), (1703, 15141), (1911, 13493), (2163, 11921), (2751, 9373), (4017, 6419), (5047, 5109)]