21305900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2767}}^1$

素因数の和:2799

約数の個数: 72

約数和(自身を含む): 57662976

約数和(自身を除く): 36357076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2767, 3850, 5534, 7700, 11068, 13835, 19369, 27670, 30437, 38738, 55340, 60874, 69175, 77476, 96845, 121748, 138350, 152185, 193690, 213059, 276700, 304370, 387380, 426118, 484225, 608740, 760925, 852236, 968450, 1065295, 1521850, 1936900, 2130590, 3043700, 4261180, 5326475, 10652950, 21305900]

約数ペア:

[(1, 21305900), (2, 10652950), (4, 5326475), (5, 4261180), (7, 3043700), (10, 2130590), (11, 1936900), (14, 1521850), (20, 1065295), (22, 968450), (25, 852236), (28, 760925), (35, 608740), (44, 484225), (50, 426118), (55, 387380), (70, 304370), (77, 276700), (100, 213059), (110, 193690), (140, 152185), (154, 138350), (175, 121748), (220, 96845), (275, 77476), (308, 69175), (350, 60874), (385, 55340), (550, 38738), (700, 30437), (770, 27670), (1100, 19369), (1540, 13835), (1925, 11068), (2767, 7700), (3850, 5534)]