19877836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{5443}}^1$

素因数の和:5541

約数の個数: 24

約数和(自身を含む): 38412864

約数和(自身を除く): 18535028

約数列:

[1, 2, 4, 11, 22, 44, 83, 166, 332, 913, 1826, 3652, 5443, 10886, 21772, 59873, 119746, 239492, 451769, 903538, 1807076, 4969459, 9938918, 19877836]

約数ペア:

[(1, 19877836), (2, 9938918), (4, 4969459), (11, 1807076), (22, 903538), (44, 451769), (83, 239492), (166, 119746), (332, 59873), (913, 21772), (1826, 10886), (3652, 5443)]