21150878841

素因数分解:

$3^4\times {\mathrm{50129}}^1\times {\mathrm{5209}}^1$

素因数の和:55350

約数の個数: 20

約数和(自身を含む): 31602453300

約数和(自身を除く): 10451574459

約数列:

[1, 3, 9, 27, 81, 5209, 15627, 46881, 50129, 140643, 150387, 421929, 451161, 1353483, 4060449, 261121961, 783365883, 2350097649, 7050292947, 21150878841]

約数ペア:

[(1, 21150878841), (3, 7050292947), (9, 2350097649), (27, 783365883), (81, 261121961), (5209, 4060449), (15627, 1353483), (46881, 451161), (50129, 421929), (140643, 150387)]