20103577

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 22960000

約数和(自身を除く): 2856423

約数列:

[1, 13, 19, 199, 247, 409, 2587, 3781, 5317, 7771, 49153, 81391, 101023, 1058083, 1546429, 20103577]

約数ペア:

[(1, 20103577), (13, 1546429), (19, 1058083), (199, 101023), (247, 81391), (409, 49153), (2587, 7771), (3781, 5317)]