21662872

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 53625600

約数和(自身を除く): 31962728

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 23, 28, 44, 46, 56, 77, 88, 92, 121, 139, 154, 161, 184, 242, 253, 278, 308, 322, 484, 506, 556, 616, 644, 847, 968, 973, 1012, 1112, 1288, 1529, 1694, 1771, 1946, 2024, 2783, 3058, 3197, 3388, 3542, 3892, 5566, 6116, 6394, 6776, 7084, 7784, 10703, 11132, 12232, 12788, 14168, 16819, 19481, 21406, 22264, 22379, 25576, 33638, 35167, 38962, 42812, 44758, 67276, 70334, 77924, 85624, 89516, 117733, 134552, 140668, 155848, 179032, 235466, 246169, 281336, 386837, 470932, 492338, 773674, 941864, 984676, 1547348, 1969352, 2707859, 3094696, 5415718, 10831436, 21662872]

約数ペア:

[(1, 21662872), (2, 10831436), (4, 5415718), (7, 3094696), (8, 2707859), (11, 1969352), (14, 1547348), (22, 984676), (23, 941864), (28, 773674), (44, 492338), (46, 470932), (56, 386837), (77, 281336), (88, 246169), (92, 235466), (121, 179032), (139, 155848), (154, 140668), (161, 134552), (184, 117733), (242, 89516), (253, 85624), (278, 77924), (308, 70334), (322, 67276), (484, 44758), (506, 42812), (556, 38962), (616, 35167), (644, 33638), (847, 25576), (968, 22379), (973, 22264), (1012, 21406), (1112, 19481), (1288, 16819), (1529, 14168), (1694, 12788), (1771, 12232), (1946, 11132), (2024, 10703), (2783, 7784), (3058, 7084), (3197, 6776), (3388, 6394), (3542, 6116), (3892, 5566)]