201988971

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{28019}}^1$

素因数の和:28120

約数の個数: 20

約数和(自身を含む): 305137800

約数和(自身を除く): 103148829

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 28019, 84057, 252171, 756513, 2269539, 2493691, 7481073, 22443219, 67329657, 201988971]

約数ペア:

[(1, 201988971), (3, 67329657), (9, 22443219), (27, 7481073), (81, 2493691), (89, 2269539), (267, 756513), (801, 252171), (2403, 84057), (7209, 28019)]