20785424

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6947}}^1$

素因数の和:6983

約数の個数: 40

約数和(自身を含む): 46523808

約数和(自身を除く): 25738384

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6947, 13894, 27788, 55576, 76417, 111152, 118099, 152834, 236198, 305668, 472396, 611336, 944792, 1222672, 1299089, 1889584, 2598178, 5196356, 10392712, 20785424]

約数ペア:

[(1, 20785424), (2, 10392712), (4, 5196356), (8, 2598178), (11, 1889584), (16, 1299089), (17, 1222672), (22, 944792), (34, 611336), (44, 472396), (68, 305668), (88, 236198), (136, 152834), (176, 118099), (187, 111152), (272, 76417), (374, 55576), (748, 27788), (1496, 13894), (2992, 6947)]