20439276

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 57539328

約数和(自身を除く): 37100052

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 43, 44, 52, 66, 78, 86, 129, 132, 143, 156, 172, 258, 277, 286, 429, 473, 516, 554, 559, 572, 831, 858, 946, 1108, 1118, 1419, 1662, 1677, 1716, 1892, 2236, 2838, 3047, 3324, 3354, 3601, 5676, 6094, 6149, 6708, 7202, 9141, 10803, 11911, 12188, 12298, 14404, 18282, 18447, 21606, 23822, 24596, 35733, 36564, 36894, 39611, 43212, 47644, 71466, 73788, 79222, 118833, 131021, 142932, 154843, 158444, 237666, 262042, 309686, 393063, 464529, 475332, 524084, 619372, 786126, 929058, 1572252, 1703273, 1858116, 3406546, 5109819, 6813092, 10219638, 20439276]

約数ペア:

[(1, 20439276), (2, 10219638), (3, 6813092), (4, 5109819), (6, 3406546), (11, 1858116), (12, 1703273), (13, 1572252), (22, 929058), (26, 786126), (33, 619372), (39, 524084), (43, 475332), (44, 464529), (52, 393063), (66, 309686), (78, 262042), (86, 237666), (129, 158444), (132, 154843), (143, 142932), (156, 131021), (172, 118833), (258, 79222), (277, 73788), (286, 71466), (429, 47644), (473, 43212), (516, 39611), (554, 36894), (559, 36564), (572, 35733), (831, 24596), (858, 23822), (946, 21606), (1108, 18447), (1118, 18282), (1419, 14404), (1662, 12298), (1677, 12188), (1716, 11911), (1892, 10803), (2236, 9141), (2838, 7202), (3047, 6708), (3324, 6149), (3354, 6094), (3601, 5676)]