17720326

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 24

約数和(自身を含む): 29118960

約数和(自身を除く): 11398634

約数列:

[1, 2, 13, 26, 103, 169, 206, 338, 509, 1018, 1339, 2678, 6617, 13234, 17407, 34814, 52427, 86021, 104854, 172042, 681551, 1363102, 8860163, 17720326]

約数ペア:

[(1, 17720326), (2, 8860163), (13, 1363102), (26, 681551), (103, 172042), (169, 104854), (206, 86021), (338, 52427), (509, 34814), (1018, 17407), (1339, 13234), (2678, 6617)]