399249

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:99

約数の個数: 24

約数和(自身を含む): 628992

約数和(自身を除く): 229743

約数列:

[1, 3, 9, 27, 31, 53, 81, 93, 159, 243, 279, 477, 837, 1431, 1643, 2511, 4293, 4929, 7533, 12879, 14787, 44361, 133083, 399249]

約数ペア:

[(1, 399249), (3, 133083), (9, 44361), (27, 14787), (31, 12879), (53, 7533), (81, 4929), (93, 4293), (159, 2511), (243, 1643), (279, 1431), (477, 837)]