18181735

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:519

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 7945625

約数列:

[1, 5, 11, 13, 55, 59, 65, 143, 295, 431, 649, 715, 767, 2155, 3245, 3835, 4741, 5603, 8437, 23705, 25429, 28015, 42185, 61633, 127145, 279719, 308165, 330577, 1398595, 1652885, 3636347, 18181735]

約数ペア:

[(1, 18181735), (5, 3636347), (11, 1652885), (13, 1398595), (55, 330577), (59, 308165), (65, 279719), (143, 127145), (295, 61633), (431, 42185), (649, 28015), (715, 25429), (767, 23705), (2155, 8437), (3245, 5603), (3835, 4741)]