21149766

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:721

約数の個数: 48

約数和(自身を含む): 50319360

約数和(自身を除く): 29169594

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 223, 446, 479, 669, 958, 1338, 1437, 2007, 2453, 2874, 4014, 4311, 4906, 5269, 7359, 8622, 10538, 14718, 15807, 22077, 31614, 44154, 47421, 94842, 106817, 213634, 320451, 640902, 961353, 1174987, 1922706, 2349974, 3524961, 7049922, 10574883, 21149766]

約数ペア:

[(1, 21149766), (2, 10574883), (3, 7049922), (6, 3524961), (9, 2349974), (11, 1922706), (18, 1174987), (22, 961353), (33, 640902), (66, 320451), (99, 213634), (198, 106817), (223, 94842), (446, 47421), (479, 44154), (669, 31614), (958, 22077), (1338, 15807), (1437, 14718), (2007, 10538), (2453, 8622), (2874, 7359), (4014, 5269), (4311, 4906)]