78338907

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{56891}}^1$

素因数の和:56920

約数の個数: 20

約数和(自身を含む): 123910776

約数和(自身を除く): 45571869

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 56891, 170673, 512019, 967147, 1536057, 2901441, 4608171, 8704323, 26112969, 78338907]

約数ペア:

[(1, 78338907), (3, 26112969), (9, 8704323), (17, 4608171), (27, 2901441), (51, 1536057), (81, 967147), (153, 512019), (459, 170673), (1377, 56891)]