21167903045

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{234977}}^1$

素因数の和:235444

約数の個数: 16

約数和(自身を含む): 26054360640

約数和(自身を除く): 4886457595

約数列:

[1, 5, 43, 215, 419, 2095, 18017, 90085, 234977, 1174885, 10104011, 50520055, 98455363, 492276815, 4233580609, 21167903045]

約数ペア:

[(1, 21167903045), (5, 4233580609), (43, 492276815), (215, 98455363), (419, 50520055), (2095, 10104011), (18017, 1174885), (90085, 234977)]