16420257

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2687}}^1$

素因数の和:2797

約数の個数: 24

約数和(自身を含む): 27396096

約数和(自身を除く): 10975839

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 2687, 6111, 8061, 18809, 24183, 56427, 169281, 260639, 781917, 1824473, 2345751, 5473419, 16420257]

約数ペア:

[(1, 16420257), (3, 5473419), (7, 2345751), (9, 1824473), (21, 781917), (63, 260639), (97, 169281), (291, 56427), (679, 24183), (873, 18809), (2037, 8061), (2687, 6111)]