209344239

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{105251}}^1$

素因数の和:105287

約数の個数: 24

約数和(自身を含む): 344805552

約数和(自身を除く): 135461313

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 105251, 315753, 947259, 1368263, 1789267, 4104789, 5367801, 12314367, 16103403, 23260471, 69781413, 209344239]

約数ペア:

[(1, 209344239), (3, 69781413), (9, 23260471), (13, 16103403), (17, 12314367), (39, 5367801), (51, 4104789), (117, 1789267), (153, 1368263), (221, 947259), (663, 315753), (1989, 105251)]