20787856

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41911}}^1$

素因数の和:41950

約数の個数: 20

約数和(自身を含む): 41576704

約数和(自身を除く): 20788848

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 41911, 83822, 167644, 335288, 670576, 1299241, 2598482, 5196964, 10393928, 20787856]

約数ペア:

[(1, 20787856), (2, 10393928), (4, 5196964), (8, 2598482), (16, 1299241), (31, 670576), (62, 335288), (124, 167644), (248, 83822), (496, 41911)]