20767336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{491}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 41446080

約数和(自身を除く): 20678744

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 311, 491, 622, 982, 1244, 1964, 2488, 3928, 5287, 8347, 10574, 16694, 21148, 33388, 42296, 66776, 152701, 305402, 610804, 1221608, 2595917, 5191834, 10383668, 20767336]

約数ペア:

[(1, 20767336), (2, 10383668), (4, 5191834), (8, 2595917), (17, 1221608), (34, 610804), (68, 305402), (136, 152701), (311, 66776), (491, 42296), (622, 33388), (982, 21148), (1244, 16694), (1964, 10574), (2488, 8347), (3928, 5287)]