17720938

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1097}}^1$

素因数の和:1337

約数の個数: 16

約数和(自身を含む): 27392904

約数和(自身を除く): 9671966

約数列:

[1, 2, 41, 82, 197, 394, 1097, 2194, 8077, 16154, 44977, 89954, 216109, 432218, 8860469, 17720938]

約数ペア:

[(1, 17720938), (2, 8860469), (41, 432218), (82, 216109), (197, 89954), (394, 44977), (1097, 16154), (2194, 8077)]