18402604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^2$

素因数の和:258

約数の個数: 36

約数和(自身を含む): 36348984

約数和(自身を除く): 17946380

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 101, 164, 202, 404, 451, 902, 1111, 1804, 2222, 4141, 4444, 8282, 10201, 16564, 20402, 40804, 45551, 91102, 112211, 182204, 224422, 418241, 448844, 836482, 1672964, 4600651, 9201302, 18402604]

約数ペア:

[(1, 18402604), (2, 9201302), (4, 4600651), (11, 1672964), (22, 836482), (41, 448844), (44, 418241), (82, 224422), (101, 182204), (164, 112211), (202, 91102), (404, 45551), (451, 40804), (902, 20402), (1111, 16564), (1804, 10201), (2222, 8282), (4141, 4444)]