28270221

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31307}}^1$

素因数の和:31360

約数の個数: 16

約数和(自身を含む): 44081664

約数和(自身を除く): 15811443

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 31307, 93921, 219149, 657447, 1346201, 4038603, 9423407, 28270221]

約数ペア:

[(1, 28270221), (3, 9423407), (7, 4038603), (21, 1346201), (43, 657447), (129, 219149), (301, 93921), (903, 31307)]