20920354

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16421}}^1$

素因数の和:16450

約数の個数: 24

約数和(自身を含む): 39314268

約数和(自身を除く): 18393914

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 16421, 32842, 114947, 213473, 229894, 426946, 804629, 1494311, 1609258, 2988622, 10460177, 20920354]

約数ペア:

[(1, 20920354), (2, 10460177), (7, 2988622), (13, 1609258), (14, 1494311), (26, 804629), (49, 426946), (91, 229894), (98, 213473), (182, 114947), (637, 32842), (1274, 16421)]