1642347

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 2745600

約数和(自身を除く): 1103253

約数列:

[1, 3, 7, 9, 21, 63, 131, 199, 393, 597, 917, 1179, 1393, 1791, 2751, 4179, 8253, 12537, 26069, 78207, 182483, 234621, 547449, 1642347]

約数ペア:

[(1, 1642347), (3, 547449), (7, 234621), (9, 182483), (21, 78207), (63, 26069), (131, 12537), (199, 8253), (393, 4179), (597, 2751), (917, 1791), (1179, 1393)]