8181381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 12638080

約数和(自身を除く): 4456699

約数列:

[1, 3, 13, 19, 39, 57, 61, 181, 183, 247, 543, 741, 793, 1159, 2353, 2379, 3439, 3477, 7059, 10317, 11041, 15067, 33123, 44707, 45201, 134121, 143533, 209779, 430599, 629337, 2727127, 8181381]

約数ペア:

[(1, 8181381), (3, 2727127), (13, 629337), (19, 430599), (39, 209779), (57, 143533), (61, 134121), (181, 45201), (183, 44707), (247, 33123), (543, 15067), (741, 11041), (793, 10317), (1159, 7059), (2353, 3477), (2379, 3439)]