20517882

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 51840000

約数和(自身を除く): 31322118

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 89, 154, 178, 231, 267, 462, 499, 534, 623, 979, 998, 1246, 1497, 1869, 1958, 2937, 2994, 3493, 3738, 5489, 5874, 6853, 6986, 10479, 10978, 13706, 16467, 20559, 20958, 32934, 38423, 41118, 44411, 76846, 88822, 115269, 133233, 230538, 266466, 310877, 488521, 621754, 932631, 977042, 1465563, 1865262, 2931126, 3419647, 6839294, 10258941, 20517882]

約数ペア:

[(1, 20517882), (2, 10258941), (3, 6839294), (6, 3419647), (7, 2931126), (11, 1865262), (14, 1465563), (21, 977042), (22, 932631), (33, 621754), (42, 488521), (66, 310877), (77, 266466), (89, 230538), (154, 133233), (178, 115269), (231, 88822), (267, 76846), (462, 44411), (499, 41118), (534, 38423), (623, 32934), (979, 20958), (998, 20559), (1246, 16467), (1497, 13706), (1869, 10978), (1958, 10479), (2937, 6986), (2994, 6853), (3493, 5874), (3738, 5489)]