19660564

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{829}}^1$

素因数の和:869

約数の個数: 54

約数和(自身を含む): 44045610

約数和(自身を除く): 24385046

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 829, 847, 1078, 1658, 1694, 2156, 3316, 3388, 5803, 5929, 9119, 11606, 11858, 18238, 23212, 23716, 36476, 40621, 63833, 81242, 100309, 127666, 162484, 200618, 255332, 401236, 446831, 702163, 893662, 1404326, 1787324, 2808652, 4915141, 9830282, 19660564]

約数ペア:

[(1, 19660564), (2, 9830282), (4, 4915141), (7, 2808652), (11, 1787324), (14, 1404326), (22, 893662), (28, 702163), (44, 446831), (49, 401236), (77, 255332), (98, 200618), (121, 162484), (154, 127666), (196, 100309), (242, 81242), (308, 63833), (484, 40621), (539, 36476), (829, 23716), (847, 23212), (1078, 18238), (1658, 11858), (1694, 11606), (2156, 9119), (3316, 5929), (3388, 5803)]