20275514

素因数分解:

$2^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{661}}^1$

素因数の和:990

約数の個数: 24

約数和(自身を含む): 35545428

約数和(自身を除く): 15269914

約数列:

[1, 2, 7, 14, 49, 98, 313, 626, 661, 1322, 2191, 4382, 4627, 9254, 15337, 30674, 32389, 64778, 206893, 413786, 1448251, 2896502, 10137757, 20275514]

約数ペア:

[(1, 20275514), (2, 10137757), (7, 2896502), (14, 1448251), (49, 413786), (98, 206893), (313, 64778), (626, 32389), (661, 30674), (1322, 15337), (2191, 9254), (4382, 4627)]