18389735

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3109}}^1$

素因数の和:3147

約数の個数: 24

約数和(自身を含む): 27318240

約数和(自身を除く): 8928505

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3109, 5915, 15545, 21763, 40417, 108815, 202085, 282919, 525421, 1414595, 2627105, 3677947, 18389735]

約数ペア:

[(1, 18389735), (5, 3677947), (7, 2627105), (13, 1414595), (35, 525421), (65, 282919), (91, 202085), (169, 108815), (455, 40417), (845, 21763), (1183, 15545), (3109, 5915)]