18206881

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 24476256

約数和(自身を除く): 6269375

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 539, 833, 1309, 1987, 9163, 13909, 21857, 33779, 97363, 152999, 236453, 371569, 1070993, 1655171, 2600983, 18206881]

約数ペア:

[(1, 18206881), (7, 2600983), (11, 1655171), (17, 1070993), (49, 371569), (77, 236453), (119, 152999), (187, 97363), (539, 33779), (833, 21857), (1309, 13909), (1987, 9163)]