21648708

素因数分解:

$2^2\times 3^4\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:738

約数の個数: 60

約数和(自身を含む): 57206380

約数和(自身を除く): 35557672

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 109, 162, 218, 324, 327, 436, 613, 654, 981, 1226, 1308, 1839, 1962, 2452, 2943, 3678, 3924, 5517, 5886, 7356, 8829, 11034, 11772, 16551, 17658, 22068, 33102, 35316, 49653, 66204, 66817, 99306, 133634, 198612, 200451, 267268, 400902, 601353, 801804, 1202706, 1804059, 2405412, 3608118, 5412177, 7216236, 10824354, 21648708]

約数ペア:

[(1, 21648708), (2, 10824354), (3, 7216236), (4, 5412177), (6, 3608118), (9, 2405412), (12, 1804059), (18, 1202706), (27, 801804), (36, 601353), (54, 400902), (81, 267268), (108, 200451), (109, 198612), (162, 133634), (218, 99306), (324, 66817), (327, 66204), (436, 49653), (613, 35316), (654, 33102), (981, 22068), (1226, 17658), (1308, 16551), (1839, 11772), (1962, 11034), (2452, 8829), (2943, 7356), (3678, 5886), (3924, 5517)]