21642558

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{733}}^1$

素因数の和:801

約数の個数: 64

約数和(自身を含む): 53552640

約数和(自身を除く): 31910082

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 703, 733, 777, 798, 1406, 1466, 1554, 2109, 2199, 4218, 4398, 4921, 5131, 9842, 10262, 13927, 14763, 15393, 27121, 27854, 29526, 30786, 41781, 54242, 81363, 83562, 97489, 162726, 189847, 194978, 292467, 379694, 515299, 569541, 584934, 1030598, 1139082, 1545897, 3091794, 3607093, 7214186, 10821279, 21642558]

約数ペア:

[(1, 21642558), (2, 10821279), (3, 7214186), (6, 3607093), (7, 3091794), (14, 1545897), (19, 1139082), (21, 1030598), (37, 584934), (38, 569541), (42, 515299), (57, 379694), (74, 292467), (111, 194978), (114, 189847), (133, 162726), (222, 97489), (259, 83562), (266, 81363), (399, 54242), (518, 41781), (703, 30786), (733, 29526), (777, 27854), (798, 27121), (1406, 15393), (1466, 14763), (1554, 13927), (2109, 10262), (2199, 9842), (4218, 5131), (4398, 4921)]