16640253

素因数分解:

$3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:506

約数の個数: 36

約数和(自身を含む): 28321020

約数和(自身を除く): 11680767

約数列:

[1, 3, 7, 9, 21, 49, 63, 97, 147, 291, 389, 441, 679, 873, 1167, 2037, 2723, 3501, 4753, 6111, 8169, 14259, 19061, 24507, 37733, 42777, 57183, 113199, 171549, 264131, 339597, 792393, 1848917, 2377179, 5546751, 16640253]

約数ペア:

[(1, 16640253), (3, 5546751), (7, 2377179), (9, 1848917), (21, 792393), (49, 339597), (63, 264131), (97, 171549), (147, 113199), (291, 57183), (389, 42777), (441, 37733), (679, 24507), (873, 19061), (1167, 14259), (2037, 8169), (2723, 6111), (3501, 4753)]