399647977

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1\times {\mathrm{823}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 428110848

約数和(自身を除く): 28462871

約数列:

[1, 23, 43, 491, 823, 989, 11293, 18929, 21113, 35389, 404093, 485599, 813947, 9294139, 17375999, 399647977]

約数ペア:

[(1, 399647977), (23, 17375999), (43, 9294139), (491, 813947), (823, 485599), (989, 404093), (11293, 35389), (18929, 21113)]