19632778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12569}}^1$

素因数の和:12653

約数の個数: 16

約数和(自身を含む): 32581440

約数和(自身を除く): 12948662

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12569, 25138, 138259, 276518, 892399, 1784798, 9816389, 19632778]

約数ペア:

[(1, 19632778), (2, 9816389), (11, 1784798), (22, 892399), (71, 276518), (142, 138259), (781, 25138), (1562, 12569)]