31720381

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{17911}}^1$

素因数の和:17952

約数の個数: 16

約数和(自身を含む): 41269248

約数和(自身を除く): 9548867

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 17911, 125377, 197021, 411953, 1379147, 2883671, 4531483, 31720381]

約数ペア:

[(1, 31720381), (7, 4531483), (11, 2883671), (23, 1379147), (77, 411953), (161, 197021), (253, 125377), (1771, 17911)]