506989

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 16

約数和(自身を含む): 626688

約数和(自身を除く): 119699

約数列:

[1, 7, 23, 47, 67, 161, 329, 469, 1081, 1541, 3149, 7567, 10787, 22043, 72427, 506989]

約数ペア:

[(1, 506989), (7, 72427), (23, 22043), (47, 10787), (67, 7567), (161, 3149), (329, 1541), (469, 1081)]