20707071

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5273}}^1$

素因数の和:5311

約数の個数: 32

約数和(自身を含む): 36453888

約数和(自身を除く): 15746817

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 5273, 15819, 36911, 58003, 89641, 110733, 174009, 268923, 406021, 627487, 986051, 1218063, 1882461, 2958153, 6902357, 20707071]

約数ペア:

[(1, 20707071), (3, 6902357), (7, 2958153), (11, 1882461), (17, 1218063), (21, 986051), (33, 627487), (51, 406021), (77, 268923), (119, 174009), (187, 110733), (231, 89641), (357, 58003), (561, 36911), (1309, 15819), (3927, 5273)]