2856861

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 4764864

約数和(自身を除く): 1908003

約数列:

[1, 3, 7, 9, 21, 63, 137, 331, 411, 959, 993, 1233, 2317, 2877, 2979, 6951, 8631, 20853, 45347, 136041, 317429, 408123, 952287, 2856861]

約数ペア:

[(1, 2856861), (3, 952287), (7, 408123), (9, 317429), (21, 136041), (63, 45347), (137, 20853), (331, 8631), (411, 6951), (959, 2979), (993, 2877), (1233, 2317)]