21000992194

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{522127}}^1$

素因数の和:522179

約数の個数: 48

約数和(自身を含む): 41277351168

約数和(自身を除く): 20276358974

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 169, 182, 221, 238, 338, 442, 1183, 1547, 2366, 2873, 3094, 5746, 20111, 40222, 522127, 1044254, 3654889, 6787651, 7309778, 8876159, 13575302, 17752318, 47513557, 62133113, 88239463, 95027114, 115390067, 124266226, 176478926, 230780134, 617676241, 807730469, 1235352482, 1500070871, 1615460938, 3000141742, 10500496097, 21000992194]

約数ペア:

[(1, 21000992194), (2, 10500496097), (7, 3000141742), (13, 1615460938), (14, 1500070871), (17, 1235352482), (26, 807730469), (34, 617676241), (91, 230780134), (119, 176478926), (169, 124266226), (182, 115390067), (221, 95027114), (238, 88239463), (338, 62133113), (442, 47513557), (1183, 17752318), (1547, 13575302), (2366, 8876159), (2873, 7309778), (3094, 6787651), (5746, 3654889), (20111, 1044254), (40222, 522127)]