28657971

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1931}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 44304624

約数和(自身を除く): 15646653

約数列:

[1, 3, 9, 17, 51, 97, 153, 291, 873, 1649, 1931, 4947, 5793, 14841, 17379, 32827, 98481, 187307, 295443, 561921, 1685763, 3184219, 9552657, 28657971]

約数ペア:

[(1, 28657971), (3, 9552657), (9, 3184219), (17, 1685763), (51, 561921), (97, 295443), (153, 187307), (291, 98481), (873, 32827), (1649, 17379), (1931, 14841), (4947, 5793)]