20999748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{22727}}^1$

素因数の和:22752

約数の個数: 48

約数和(自身を含む): 61092864

約数和(自身を除く): 40093116

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 22727, 45454, 68181, 90908, 136362, 159089, 249997, 272724, 318178, 477267, 499994, 636356, 749991, 954534, 999988, 1499982, 1749979, 1909068, 2999964, 3499958, 5249937, 6999916, 10499874, 20999748]

約数ペア:

[(1, 20999748), (2, 10499874), (3, 6999916), (4, 5249937), (6, 3499958), (7, 2999964), (11, 1909068), (12, 1749979), (14, 1499982), (21, 999988), (22, 954534), (28, 749991), (33, 636356), (42, 499994), (44, 477267), (66, 318178), (77, 272724), (84, 249997), (132, 159089), (154, 136362), (231, 90908), (308, 68181), (462, 45454), (924, 22727)]