21971950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:482

約数の個数: 96

約数和(自身を含む): 54996480

約数和(自身を除く): 33024530

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 50, 55, 65, 70, 77, 91, 110, 130, 143, 154, 175, 182, 275, 286, 325, 350, 385, 439, 455, 550, 650, 715, 770, 878, 910, 1001, 1430, 1925, 2002, 2195, 2275, 3073, 3575, 3850, 4390, 4550, 4829, 5005, 5707, 6146, 7150, 9658, 10010, 10975, 11414, 15365, 21950, 24145, 25025, 28535, 30730, 33803, 39949, 48290, 50050, 57070, 62777, 67606, 76825, 79898, 120725, 125554, 142675, 153650, 169015, 199745, 241450, 285350, 313885, 338030, 399490, 439439, 627770, 845075, 878878, 998725, 1569425, 1690150, 1997450, 2197195, 3138850, 4394390, 10985975, 21971950]

約数ペア:

[(1, 21971950), (2, 10985975), (5, 4394390), (7, 3138850), (10, 2197195), (11, 1997450), (13, 1690150), (14, 1569425), (22, 998725), (25, 878878), (26, 845075), (35, 627770), (50, 439439), (55, 399490), (65, 338030), (70, 313885), (77, 285350), (91, 241450), (110, 199745), (130, 169015), (143, 153650), (154, 142675), (175, 125554), (182, 120725), (275, 79898), (286, 76825), (325, 67606), (350, 62777), (385, 57070), (439, 50050), (455, 48290), (550, 39949), (650, 33803), (715, 30730), (770, 28535), (878, 25025), (910, 24145), (1001, 21950), (1430, 15365), (1925, 11414), (2002, 10975), (2195, 10010), (2275, 9658), (3073, 7150), (3575, 6146), (3850, 5707), (4390, 5005), (4550, 4829)]