18661455

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1160

約数の個数: 32

約数和(自身を含む): 33451200

約数和(自身を除く): 14789745

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 1009, 1233, 2055, 3027, 3699, 5045, 6165, 9081, 15135, 18495, 27243, 45405, 136215, 138233, 414699, 691165, 1244097, 2073495, 3732291, 6220485, 18661455]

約数ペア:

[(1, 18661455), (3, 6220485), (5, 3732291), (9, 2073495), (15, 1244097), (27, 691165), (45, 414699), (135, 138233), (137, 136215), (411, 45405), (685, 27243), (1009, 18495), (1233, 15135), (2055, 9081), (3027, 6165), (3699, 5045)]