19888316

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{3499}}^1$

素因数の和:3546

約数の個数: 36

約数和(自身を含む): 41895000

約数和(自身を除く): 22006684

約数列:

[1, 2, 4, 7, 14, 28, 29, 49, 58, 98, 116, 196, 203, 406, 812, 1421, 2842, 3499, 5684, 6998, 13996, 24493, 48986, 97972, 101471, 171451, 202942, 342902, 405884, 685804, 710297, 1420594, 2841188, 4972079, 9944158, 19888316]

約数ペア:

[(1, 19888316), (2, 9944158), (4, 4972079), (7, 2841188), (14, 1420594), (28, 710297), (29, 685804), (49, 405884), (58, 342902), (98, 202942), (116, 171451), (196, 101471), (203, 97972), (406, 48986), (812, 24493), (1421, 13996), (2842, 6998), (3499, 5684)]