865396

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1039

約数の個数: 24

約数和(自身を含む): 1788416

約数和(自身を除く): 923020

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 997, 1994, 3988, 6979, 13958, 27916, 30907, 61814, 123628, 216349, 432698, 865396]

約数ペア:

[(1, 865396), (2, 432698), (4, 216349), (7, 123628), (14, 61814), (28, 30907), (31, 27916), (62, 13958), (124, 6979), (217, 3988), (434, 1994), (868, 997)]