1256589

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 1976832

約数和(自身を除く): 720243

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 191, 387, 573, 731, 1719, 2193, 3247, 6579, 8213, 9741, 24639, 29223, 73917, 139621, 418863, 1256589]

約数ペア:

[(1, 1256589), (3, 418863), (9, 139621), (17, 73917), (43, 29223), (51, 24639), (129, 9741), (153, 8213), (191, 6579), (387, 3247), (573, 2193), (731, 1719)]