1286019

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:299

約数の個数: 24

約数和(自身を含む): 2152800

約数和(自身を除く): 866781

約数列:

[1, 3, 7, 9, 21, 63, 137, 149, 411, 447, 959, 1043, 1233, 1341, 2877, 3129, 8631, 9387, 20413, 61239, 142891, 183717, 428673, 1286019]

約数ペア:

[(1, 1286019), (3, 428673), (7, 183717), (9, 142891), (21, 61239), (63, 20413), (137, 9387), (149, 8631), (411, 3129), (447, 2877), (959, 1341), (1043, 1233)]