16645221

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 24984960

約数和(自身を除く): 8339739

約数列:

[1, 3, 9, 41, 79, 123, 237, 369, 571, 711, 1713, 3239, 5139, 9717, 23411, 29151, 45109, 70233, 135327, 210699, 405981, 1849469, 5548407, 16645221]

約数ペア:

[(1, 16645221), (3, 5548407), (9, 1849469), (41, 405981), (79, 210699), (123, 135327), (237, 70233), (369, 45109), (571, 29151), (711, 23411), (1713, 9717), (3239, 5139)]