40391687

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1213}}^1$

素因数の和:1358

約数の個数: 16

約数和(自身を含む): 47549952

約数和(自身を除く): 7158265

約数列:

[1, 7, 67, 71, 469, 497, 1213, 4757, 8491, 33299, 81271, 86123, 568897, 602861, 5770241, 40391687]

約数ペア:

[(1, 40391687), (7, 5770241), (67, 602861), (71, 568897), (469, 86123), (497, 81271), (1213, 33299), (4757, 8491)]