18729315

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 35788896

約数和(自身を除く): 17059581

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 157, 165, 241, 471, 495, 723, 785, 1205, 1413, 1727, 2169, 2355, 2651, 3615, 5181, 7065, 7953, 8635, 10845, 13255, 15543, 23859, 25905, 37837, 39765, 77715, 113511, 119295, 189185, 340533, 416207, 567555, 1248621, 1702665, 2081035, 3745863, 6243105, 18729315]

約数ペア:

[(1, 18729315), (3, 6243105), (5, 3745863), (9, 2081035), (11, 1702665), (15, 1248621), (33, 567555), (45, 416207), (55, 340533), (99, 189185), (157, 119295), (165, 113511), (241, 77715), (471, 39765), (495, 37837), (723, 25905), (785, 23859), (1205, 15543), (1413, 13255), (1727, 10845), (2169, 8635), (2355, 7953), (2651, 7065), (3615, 5181)]