19758212

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{45317}}^1$

素因数の和:45430

約数の個数: 12

約数和(自身を含む): 34894860

約数和(自身を除く): 15136648

約数列:

[1, 2, 4, 109, 218, 436, 45317, 90634, 181268, 4939553, 9879106, 19758212]

約数ペア:

[(1, 19758212), (2, 9879106), (4, 4939553), (109, 181268), (218, 90634), (436, 45317)]