9178221

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 13591776

約数和(自身を除く): 4413555

約数列:

[1, 3, 13, 39, 43, 129, 169, 421, 507, 559, 1263, 1677, 5473, 7267, 16419, 18103, 21801, 54309, 71149, 213447, 235339, 706017, 3059407, 9178221]

約数ペア:

[(1, 9178221), (3, 3059407), (13, 706017), (39, 235339), (43, 213447), (129, 71149), (169, 54309), (421, 21801), (507, 18103), (559, 16419), (1263, 7267), (1677, 5473)]