21070514

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19991}}^1$

素因数の和:20041

約数の個数: 16

約数和(自身を含む): 34546176

約数和(自身を除く): 13475662

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19991, 39982, 339847, 619721, 679694, 1239442, 10535257, 21070514]

約数ペア:

[(1, 21070514), (2, 10535257), (17, 1239442), (31, 679694), (34, 619721), (62, 339847), (527, 39982), (1054, 19991)]