21681656542

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{797}}^1\times {\mathrm{7867}}^1$

素因数の和:8705

約数の個数: 64

約数和(自身を含む): 42192622080

約数和(自身を除く): 20510965538

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 797, 1594, 1729, 3458, 5579, 7867, 10361, 11158, 15143, 15734, 20722, 30286, 55069, 72527, 102271, 106001, 110138, 145054, 149473, 196859, 204542, 212002, 298946, 393718, 715897, 1046311, 1378013, 1431794, 1943149, 2092622, 2756026, 3886298, 6269999, 12539998, 13602043, 27204086, 43889993, 81509987, 87779986, 119129981, 163019974, 238259962, 570569909, 833909867, 1141139818, 1548689753, 1667819734, 3097379506, 10840828271, 21681656542]

約数ペア:

[(1, 21681656542), (2, 10840828271), (7, 3097379506), (13, 1667819734), (14, 1548689753), (19, 1141139818), (26, 833909867), (38, 570569909), (91, 238259962), (133, 163019974), (182, 119129981), (247, 87779986), (266, 81509987), (494, 43889993), (797, 27204086), (1594, 13602043), (1729, 12539998), (3458, 6269999), (5579, 3886298), (7867, 2756026), (10361, 2092622), (11158, 1943149), (15143, 1431794), (15734, 1378013), (20722, 1046311), (30286, 715897), (55069, 393718), (72527, 298946), (102271, 212002), (106001, 204542), (110138, 196859), (145054, 149473)]