19890772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1759}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 38142720

約数和(自身を除く): 18251948

約数列:

[1, 2, 4, 11, 22, 44, 257, 514, 1028, 1759, 2827, 3518, 5654, 7036, 11308, 19349, 38698, 77396, 452063, 904126, 1808252, 4972693, 9945386, 19890772]

約数ペア:

[(1, 19890772), (2, 9945386), (4, 4972693), (11, 1808252), (22, 904126), (44, 452063), (257, 77396), (514, 38698), (1028, 19349), (1759, 11308), (2827, 7036), (3518, 5654)]