20161971908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{49639}}^1$

素因数の和:49836

約数の個数: 48

約数和(自身を含む): 38878842240

約数和(自身を除く): 18716870332

約数列:

[1, 2, 4, 13, 26, 52, 73, 107, 146, 214, 292, 428, 949, 1391, 1898, 2782, 3796, 5564, 7811, 15622, 31244, 49639, 99278, 101543, 198556, 203086, 406172, 645307, 1290614, 2581228, 3623647, 5311373, 7247294, 10622746, 14494588, 21245492, 47107411, 69047849, 94214822, 138095698, 188429644, 276191396, 387730229, 775460458, 1550920916, 5040492977, 10080985954, 20161971908]

約数ペア:

[(1, 20161971908), (2, 10080985954), (4, 5040492977), (13, 1550920916), (26, 775460458), (52, 387730229), (73, 276191396), (107, 188429644), (146, 138095698), (214, 94214822), (292, 69047849), (428, 47107411), (949, 21245492), (1391, 14494588), (1898, 10622746), (2782, 7247294), (3796, 5311373), (5564, 3623647), (7811, 2581228), (15622, 1290614), (31244, 645307), (49639, 406172), (99278, 203086), (101543, 198556)]