380289

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:229

約数の個数: 24

約数和(自身を含む): 638400

約数和(自身を除く): 258111

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 199, 273, 597, 637, 1393, 1911, 2587, 4179, 7761, 9751, 18109, 29253, 54327, 126763, 380289]

約数ペア:

[(1, 380289), (3, 126763), (7, 54327), (13, 29253), (21, 18109), (39, 9751), (49, 7761), (91, 4179), (147, 2587), (199, 1911), (273, 1393), (597, 637)]