18580214

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 30602880

約数和(自身を除く): 12022666

約数列:

[1, 2, 19, 38, 43, 83, 86, 137, 166, 274, 817, 1577, 1634, 2603, 3154, 3569, 5206, 5891, 7138, 11371, 11782, 22742, 67811, 111929, 135622, 216049, 223858, 432098, 488953, 977906, 9290107, 18580214]

約数ペア:

[(1, 18580214), (2, 9290107), (19, 977906), (38, 488953), (43, 432098), (83, 223858), (86, 216049), (137, 135622), (166, 111929), (274, 67811), (817, 22742), (1577, 11782), (1634, 11371), (2603, 7138), (3154, 5891), (3569, 5206)]