20996904

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{971}}^1$

素因数の和:1050

約数の個数: 64

約数和(自身を含む): 56687040

約数和(自身を除く): 35690136

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 53, 68, 102, 106, 136, 159, 204, 212, 318, 408, 424, 636, 901, 971, 1272, 1802, 1942, 2703, 2913, 3604, 3884, 5406, 5826, 7208, 7768, 10812, 11652, 16507, 21624, 23304, 33014, 49521, 51463, 66028, 99042, 102926, 132056, 154389, 198084, 205852, 308778, 396168, 411704, 617556, 874871, 1235112, 1749742, 2624613, 3499484, 5249226, 6998968, 10498452, 20996904]

約数ペア:

[(1, 20996904), (2, 10498452), (3, 6998968), (4, 5249226), (6, 3499484), (8, 2624613), (12, 1749742), (17, 1235112), (24, 874871), (34, 617556), (51, 411704), (53, 396168), (68, 308778), (102, 205852), (106, 198084), (136, 154389), (159, 132056), (204, 102926), (212, 99042), (318, 66028), (408, 51463), (424, 49521), (636, 33014), (901, 23304), (971, 21624), (1272, 16507), (1802, 11652), (1942, 10812), (2703, 7768), (2913, 7208), (3604, 5826), (3884, 5406)]