18181857

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 26220256

約数和(自身を除く): 8038399

約数列:

[1, 3, 17, 51, 67, 201, 289, 313, 867, 939, 1139, 3417, 5321, 15963, 19363, 20971, 58089, 62913, 90457, 271371, 356507, 1069521, 6060619, 18181857]

約数ペア:

[(1, 18181857), (3, 6060619), (17, 1069521), (51, 356507), (67, 271371), (201, 90457), (289, 62913), (313, 58089), (867, 20971), (939, 19363), (1139, 15963), (3417, 5321)]