2070207

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 3186144

約数和(自身を除く): 1115937

約数列:

[1, 3, 9, 23, 69, 73, 137, 207, 219, 411, 657, 1233, 1679, 3151, 5037, 9453, 10001, 15111, 28359, 30003, 90009, 230023, 690069, 2070207]

約数ペア:

[(1, 2070207), (3, 690069), (9, 230023), (23, 90009), (69, 30003), (73, 28359), (137, 15111), (207, 10001), (219, 9453), (411, 5037), (657, 3151), (1233, 1679)]