20891406

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3221}}^1$

素因数の和:3296

約数の個数: 32

約数和(自身を含む): 44540928

約数和(自身を除く): 23649522

約数列:

[1, 2, 3, 6, 23, 46, 47, 69, 94, 138, 141, 282, 1081, 2162, 3221, 3243, 6442, 6486, 9663, 19326, 74083, 148166, 151387, 222249, 302774, 444498, 454161, 908322, 3481901, 6963802, 10445703, 20891406]

約数ペア:

[(1, 20891406), (2, 10445703), (3, 6963802), (6, 3481901), (23, 908322), (46, 454161), (47, 444498), (69, 302774), (94, 222249), (138, 151387), (141, 148166), (282, 74083), (1081, 19326), (2162, 9663), (3221, 6486), (3243, 6442)]