247811396

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{285497}}^1$

素因数の和:285539

約数の個数: 24

約数和(自身を含む): 511612416

約数和(自身を除く): 263801020

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 285497, 570994, 1141988, 1998479, 3996958, 7993916, 8850407, 17700814, 35401628, 61952849, 123905698, 247811396]

約数ペア:

[(1, 247811396), (2, 123905698), (4, 61952849), (7, 35401628), (14, 17700814), (28, 8850407), (31, 7993916), (62, 3996958), (124, 1998479), (217, 1141988), (434, 570994), (868, 285497)]