18758896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90187}}^1$

素因数の和:90208

約数の個数: 20

約数和(自身を含む): 39141592

約数和(自身を除く): 20382696

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90187, 180374, 360748, 721496, 1172431, 1442992, 2344862, 4689724, 9379448, 18758896]

約数ペア:

[(1, 18758896), (2, 9379448), (4, 4689724), (8, 2344862), (13, 1442992), (16, 1172431), (26, 721496), (52, 360748), (104, 180374), (208, 90187)]