19857826

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1801}}^1$

素因数の和:1989

約数の個数: 16

約数和(自身を含む): 30814200

約数和(自身を除く): 10956374

約数列:

[1, 2, 37, 74, 149, 298, 1801, 3602, 5513, 11026, 66637, 133274, 268349, 536698, 9928913, 19857826]

約数ペア:

[(1, 19857826), (2, 9928913), (37, 536698), (74, 268349), (149, 133274), (298, 66637), (1801, 11026), (3602, 5513)]