18883414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:660

約数の個数: 32

約数和(自身を含む): 32783616

約数和(自身を除く): 13900202

約数列:

[1, 2, 11, 22, 23, 46, 67, 134, 253, 506, 557, 737, 1114, 1474, 1541, 3082, 6127, 12254, 12811, 16951, 25622, 33902, 37319, 74638, 140921, 281842, 410509, 821018, 858337, 1716674, 9441707, 18883414]

約数ペア:

[(1, 18883414), (2, 9441707), (11, 1716674), (22, 858337), (23, 821018), (46, 410509), (67, 281842), (134, 140921), (253, 74638), (506, 37319), (557, 33902), (737, 25622), (1114, 16951), (1474, 12811), (1541, 12254), (3082, 6127)]