18920522

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:685

約数の個数: 16

約数和(自身を含む): 28814400

約数和(自身を除く): 9893878

約数列:

[1, 2, 137, 199, 274, 347, 398, 694, 27263, 47539, 54526, 69053, 95078, 138106, 9460261, 18920522]

約数ペア:

[(1, 18920522), (2, 9460261), (137, 138106), (199, 95078), (274, 69053), (347, 54526), (398, 47539), (694, 27263)]