16328781

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 28753920

約数和(自身を除く): 12425139

約数列:

[1, 3, 7, 9, 21, 23, 59, 63, 69, 161, 177, 191, 207, 413, 483, 531, 573, 1239, 1337, 1357, 1449, 1719, 3717, 4011, 4071, 4393, 9499, 11269, 12033, 12213, 13179, 28497, 30751, 33807, 39537, 78883, 85491, 92253, 101421, 236649, 259187, 276759, 709947, 777561, 1814309, 2332683, 5442927, 16328781]

約数ペア:

[(1, 16328781), (3, 5442927), (7, 2332683), (9, 1814309), (21, 777561), (23, 709947), (59, 276759), (63, 259187), (69, 236649), (161, 101421), (177, 92253), (191, 85491), (207, 78883), (413, 39537), (483, 33807), (531, 30751), (573, 28497), (1239, 13179), (1337, 12213), (1357, 12033), (1449, 11269), (1719, 9499), (3717, 4393), (4011, 4071)]