2018678787

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{82981}}^1$

素因数の和:83060

約数の個数: 32

約数和(自身を含む): 3226340160

約数和(自身を除く): 1207661373

約数列:

[1, 3, 9, 17, 27, 51, 53, 153, 159, 459, 477, 901, 1431, 2703, 8109, 24327, 82981, 248943, 746829, 1410677, 2240487, 4232031, 4397993, 12696093, 13193979, 38088279, 39581937, 74765881, 118745811, 224297643, 672892929, 2018678787]

約数ペア:

[(1, 2018678787), (3, 672892929), (9, 224297643), (17, 118745811), (27, 74765881), (51, 39581937), (53, 38088279), (153, 13193979), (159, 12696093), (459, 4397993), (477, 4232031), (901, 2240487), (1431, 1410677), (2703, 746829), (8109, 248943), (24327, 82981)]