20986092

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 57316896

約数和(自身を除く): 36330804

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 53, 68, 102, 106, 153, 159, 204, 212, 306, 318, 477, 612, 636, 647, 901, 954, 1294, 1802, 1908, 1941, 2588, 2703, 3604, 3882, 5406, 5823, 7764, 8109, 10812, 10999, 11646, 16218, 21998, 23292, 32436, 32997, 34291, 43996, 65994, 68582, 98991, 102873, 131988, 137164, 197982, 205746, 308619, 395964, 411492, 582947, 617238, 1165894, 1234476, 1748841, 2331788, 3497682, 5246523, 6995364, 10493046, 20986092]

約数ペア:

[(1, 20986092), (2, 10493046), (3, 6995364), (4, 5246523), (6, 3497682), (9, 2331788), (12, 1748841), (17, 1234476), (18, 1165894), (34, 617238), (36, 582947), (51, 411492), (53, 395964), (68, 308619), (102, 205746), (106, 197982), (153, 137164), (159, 131988), (204, 102873), (212, 98991), (306, 68582), (318, 65994), (477, 43996), (612, 34291), (636, 32997), (647, 32436), (901, 23292), (954, 21998), (1294, 16218), (1802, 11646), (1908, 10999), (1941, 10812), (2588, 8109), (2703, 7764), (3604, 5823), (3882, 5406)]