20689734

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 46884096

約数和(自身を除く): 26194362

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 67, 74, 78, 107, 111, 134, 201, 214, 222, 321, 402, 481, 642, 871, 962, 1391, 1443, 1742, 2479, 2613, 2782, 2886, 3959, 4173, 4958, 5226, 7169, 7437, 7918, 8346, 11877, 14338, 14874, 21507, 23754, 32227, 43014, 51467, 64454, 93197, 96681, 102934, 154401, 186394, 193362, 265253, 279591, 308802, 530506, 559182, 795759, 1591518, 3448289, 6896578, 10344867, 20689734]

約数ペア:

[(1, 20689734), (2, 10344867), (3, 6896578), (6, 3448289), (13, 1591518), (26, 795759), (37, 559182), (39, 530506), (67, 308802), (74, 279591), (78, 265253), (107, 193362), (111, 186394), (134, 154401), (201, 102934), (214, 96681), (222, 93197), (321, 64454), (402, 51467), (481, 43014), (642, 32227), (871, 23754), (962, 21507), (1391, 14874), (1443, 14338), (1742, 11877), (2479, 8346), (2613, 7918), (2782, 7437), (2886, 7169), (3959, 5226), (4173, 4958)]