20887064

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3343}}^1$

素因数の和:3431

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 22451176

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3343, 6248, 6686, 13372, 26744, 36773, 73546, 147092, 237353, 294184, 474706, 949412, 1898824, 2610883, 5221766, 10443532, 20887064]

約数ペア:

[(1, 20887064), (2, 10443532), (4, 5221766), (8, 2610883), (11, 1898824), (22, 949412), (44, 474706), (71, 294184), (88, 237353), (142, 147092), (284, 73546), (568, 36773), (781, 26744), (1562, 13372), (3124, 6686), (3343, 6248)]