20939784

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^2\times {\mathrm{3019}}^1$

素因数の和:3062

約数の個数: 48

約数和(自身を含む): 55628400

約数和(自身を除く): 34688616

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 289, 408, 578, 867, 1156, 1734, 2312, 3019, 3468, 6038, 6936, 9057, 12076, 18114, 24152, 36228, 51323, 72456, 102646, 153969, 205292, 307938, 410584, 615876, 872491, 1231752, 1744982, 2617473, 3489964, 5234946, 6979928, 10469892, 20939784]

約数ペア:

[(1, 20939784), (2, 10469892), (3, 6979928), (4, 5234946), (6, 3489964), (8, 2617473), (12, 1744982), (17, 1231752), (24, 872491), (34, 615876), (51, 410584), (68, 307938), (102, 205292), (136, 153969), (204, 102646), (289, 72456), (408, 51323), (578, 36228), (867, 24152), (1156, 18114), (1734, 12076), (2312, 9057), (3019, 6936), (3468, 6038)]