1290231

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{271}}^1$

素因数の和:323

約数の個数: 18

約数和(自身を含む): 1955408

約数和(自身を除く): 665177

約数列:

[1, 3, 9, 23, 69, 207, 271, 529, 813, 1587, 2439, 4761, 6233, 18699, 56097, 143359, 430077, 1290231]

約数ペア:

[(1, 1290231), (3, 430077), (9, 143359), (23, 56097), (69, 18699), (207, 6233), (271, 4761), (529, 2439), (813, 1587)]