9919721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2689}}^1$

素因数の和:2744

約数の個数: 16

約数和(自身を含む): 12395520

約数和(自身を除く): 2475799

約数列:

[1, 7, 17, 31, 119, 217, 527, 2689, 3689, 18823, 45713, 83359, 319991, 583513, 1417103, 9919721]

約数ペア:

[(1, 9919721), (7, 1417103), (17, 583513), (31, 319991), (119, 83359), (217, 45713), (527, 18823), (2689, 3689)]