31781211

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{8093}}^1$

素因数の和:8131

約数の個数: 32

約数和(自身を含む): 55945728

約数和(自身を除く): 24164517

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 8093, 24279, 56651, 89023, 137581, 169953, 267069, 412743, 623161, 963067, 1513391, 1869483, 2889201, 4540173, 10593737, 31781211]

約数ペア:

[(1, 31781211), (3, 10593737), (7, 4540173), (11, 2889201), (17, 1869483), (21, 1513391), (33, 963067), (51, 623161), (77, 412743), (119, 267069), (187, 169953), (231, 137581), (357, 89023), (561, 56651), (1309, 24279), (3927, 8093)]