19958968

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{6911}}^1$

素因数の和:6955

約数の個数: 24

約数和(自身を含む): 39502080

約数和(自身を除く): 19543112

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 6911, 13822, 27644, 55288, 131309, 262618, 525236, 1050472, 2494871, 4989742, 9979484, 19958968]

約数ペア:

[(1, 19958968), (2, 9979484), (4, 4989742), (8, 2494871), (19, 1050472), (38, 525236), (76, 262618), (152, 131309), (361, 55288), (722, 27644), (1444, 13822), (2888, 6911)]