19810742

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9497}}^1$

素因数の和:9655

約数の個数: 16

約数和(自身を含む): 34192800

約数和(自身を除く): 14382058

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 9497, 18994, 66479, 132958, 1415053, 2830106, 9905371, 19810742]

約数ペア:

[(1, 19810742), (2, 9905371), (7, 2830106), (14, 1415053), (149, 132958), (298, 66479), (1043, 18994), (2086, 9497)]