213320239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 258048000

約数和(自身を除く): 44727761

約数列:

[1, 11, 19, 23, 199, 209, 223, 253, 437, 2189, 2453, 3781, 4237, 4577, 4807, 5129, 41591, 44377, 46607, 50347, 56419, 86963, 97451, 488147, 843163, 956593, 1020671, 1071961, 9274793, 11227381, 19392749, 213320239]

約数ペア:

[(1, 213320239), (11, 19392749), (19, 11227381), (23, 9274793), (199, 1071961), (209, 1020671), (223, 956593), (253, 843163), (437, 488147), (2189, 97451), (2453, 86963), (3781, 56419), (4237, 50347), (4577, 46607), (4807, 44377), (5129, 41591)]