20983336

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 44169300

約数和(自身を除く): 23185964

約数列:

[1, 2, 4, 8, 11, 22, 44, 53, 88, 106, 121, 212, 242, 409, 424, 484, 583, 818, 968, 1166, 1636, 2332, 3272, 4499, 4664, 6413, 8998, 12826, 17996, 21677, 25652, 35992, 43354, 49489, 51304, 86708, 98978, 173416, 197956, 238447, 395912, 476894, 953788, 1907576, 2622917, 5245834, 10491668, 20983336]

約数ペア:

[(1, 20983336), (2, 10491668), (4, 5245834), (8, 2622917), (11, 1907576), (22, 953788), (44, 476894), (53, 395912), (88, 238447), (106, 197956), (121, 173416), (212, 98978), (242, 86708), (409, 51304), (424, 49489), (484, 43354), (583, 35992), (818, 25652), (968, 21677), (1166, 17996), (1636, 12826), (2332, 8998), (3272, 6413), (4499, 4664)]