21351176

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 52859520

約数和(自身を除く): 31508344

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 121, 137, 154, 161, 184, 242, 253, 274, 308, 322, 484, 506, 548, 616, 644, 847, 959, 968, 1012, 1096, 1288, 1507, 1694, 1771, 1918, 2024, 2783, 3014, 3151, 3388, 3542, 3836, 5566, 6028, 6302, 6776, 7084, 7672, 10549, 11132, 12056, 12604, 14168, 16577, 19481, 21098, 22057, 22264, 25208, 33154, 34661, 38962, 42196, 44114, 66308, 69322, 77924, 84392, 88228, 116039, 132616, 138644, 155848, 176456, 232078, 242627, 277288, 381271, 464156, 485254, 762542, 928312, 970508, 1525084, 1941016, 2668897, 3050168, 5337794, 10675588, 21351176]

約数ペア:

[(1, 21351176), (2, 10675588), (4, 5337794), (7, 3050168), (8, 2668897), (11, 1941016), (14, 1525084), (22, 970508), (23, 928312), (28, 762542), (44, 485254), (46, 464156), (56, 381271), (77, 277288), (88, 242627), (92, 232078), (121, 176456), (137, 155848), (154, 138644), (161, 132616), (184, 116039), (242, 88228), (253, 84392), (274, 77924), (308, 69322), (322, 66308), (484, 44114), (506, 42196), (548, 38962), (616, 34661), (644, 33154), (847, 25208), (959, 22264), (968, 22057), (1012, 21098), (1096, 19481), (1288, 16577), (1507, 14168), (1694, 12604), (1771, 12056), (1918, 11132), (2024, 10549), (2783, 7672), (3014, 7084), (3151, 6776), (3388, 6302), (3542, 6028), (3836, 5566)]