256986723

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{911}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 424189440

約数和(自身を除く): 167202717

約数列:

[1, 3, 7, 19, 21, 49, 57, 101, 133, 147, 303, 399, 707, 911, 931, 1919, 2121, 2733, 2793, 4949, 5757, 6377, 13433, 14847, 17309, 19131, 40299, 44639, 51927, 92011, 94031, 121163, 133917, 276033, 282093, 363489, 644077, 848141, 1748209, 1932231, 2544423, 4508539, 5244627, 12237463, 13525617, 36712389, 85662241, 256986723]

約数ペア:

[(1, 256986723), (3, 85662241), (7, 36712389), (19, 13525617), (21, 12237463), (49, 5244627), (57, 4508539), (101, 2544423), (133, 1932231), (147, 1748209), (303, 848141), (399, 644077), (707, 363489), (911, 282093), (931, 276033), (1919, 133917), (2121, 121163), (2733, 94031), (2793, 92011), (4949, 51927), (5757, 44639), (6377, 40299), (13433, 19131), (14847, 17309)]