19242586

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20341}}^1$

素因数の和:20397

約数の個数: 16

約数和(自身を含む): 32221728

約数和(自身を除く): 12979142

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20341, 40682, 223751, 447502, 874663, 1749326, 9621293, 19242586]

約数ペア:

[(1, 19242586), (2, 9621293), (11, 1749326), (22, 874663), (43, 447502), (86, 223751), (473, 40682), (946, 20341)]