18401955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{373}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 36191232

約数和(自身を除く): 17789277

約数列:

[1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 115, 143, 165, 195, 253, 299, 345, 373, 429, 715, 759, 897, 1119, 1265, 1495, 1865, 2145, 3289, 3795, 4103, 4485, 4849, 5595, 8579, 9867, 12309, 14547, 16445, 20515, 24245, 25737, 42895, 49335, 53339, 61545, 72735, 94369, 111527, 128685, 160017, 266695, 283107, 334581, 471845, 557635, 800085, 1226797, 1415535, 1672905, 3680391, 6133985, 18401955]

約数ペア:

[(1, 18401955), (3, 6133985), (5, 3680391), (11, 1672905), (13, 1415535), (15, 1226797), (23, 800085), (33, 557635), (39, 471845), (55, 334581), (65, 283107), (69, 266695), (115, 160017), (143, 128685), (165, 111527), (195, 94369), (253, 72735), (299, 61545), (345, 53339), (373, 49335), (429, 42895), (715, 25737), (759, 24245), (897, 20515), (1119, 16445), (1265, 14547), (1495, 12309), (1865, 9867), (2145, 8579), (3289, 5595), (3795, 4849), (4103, 4485)]