28628397

素因数分解:

$3^4\times 7^2\times {\mathrm{7213}}^1$

素因数の和:7239

約数の個数: 30

約数和(自身を含む): 49754958

約数和(自身を除く): 21126561

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 7213, 21639, 50491, 64917, 151473, 194751, 353437, 454419, 584253, 1060311, 1363257, 3180933, 4089771, 9542799, 28628397]

約数ペア:

[(1, 28628397), (3, 9542799), (7, 4089771), (9, 3180933), (21, 1363257), (27, 1060311), (49, 584253), (63, 454419), (81, 353437), (147, 194751), (189, 151473), (441, 64917), (567, 50491), (1323, 21639), (3969, 7213)]