257416506

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{621779}}^1$

素因数の和:621810

約数の個数: 24

約数和(自身を含む): 581986080

約数和(自身を除く): 324569574

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 621779, 1243558, 1865337, 3730674, 5596011, 11192022, 14300917, 28601834, 42902751, 85805502, 128708253, 257416506]

約数ペア:

[(1, 257416506), (2, 128708253), (3, 85805502), (6, 42902751), (9, 28601834), (18, 14300917), (23, 11192022), (46, 5596011), (69, 3730674), (138, 1865337), (207, 1243558), (414, 621779)]