28070702

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{17971}}^1$

素因数の和:18055

約数の個数: 16

約数和(自身を含む): 46583424

約数和(自身を除く): 18512722

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 17971, 35942, 197681, 395362, 1275941, 2551882, 14035351, 28070702]

約数ペア:

[(1, 28070702), (2, 14035351), (11, 2551882), (22, 1275941), (71, 395362), (142, 197681), (781, 35942), (1562, 17971)]