20999136

素因数分解:

$2^5\times 3^1\times {\mathrm{43}}^1\times {\mathrm{5087}}^1$

素因数の和:5143

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 35416608

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 86, 96, 129, 172, 258, 344, 516, 688, 1032, 1376, 2064, 4128, 5087, 10174, 15261, 20348, 30522, 40696, 61044, 81392, 122088, 162784, 218741, 244176, 437482, 488352, 656223, 874964, 1312446, 1749928, 2624892, 3499856, 5249784, 6999712, 10499568, 20999136]

約数ペア:

[(1, 20999136), (2, 10499568), (3, 6999712), (4, 5249784), (6, 3499856), (8, 2624892), (12, 1749928), (16, 1312446), (24, 874964), (32, 656223), (43, 488352), (48, 437482), (86, 244176), (96, 218741), (129, 162784), (172, 122088), (258, 81392), (344, 61044), (516, 40696), (688, 30522), (1032, 20348), (1376, 15261), (2064, 10174), (4128, 5087)]