21575906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:830

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 16163614

約数列:

[1, 2, 11, 19, 22, 38, 71, 142, 209, 418, 727, 781, 1349, 1454, 1562, 2698, 7997, 13813, 14839, 15994, 27626, 29678, 51617, 103234, 151943, 303886, 567787, 980723, 1135574, 1961446, 10787953, 21575906]

約数ペア:

[(1, 21575906), (2, 10787953), (11, 1961446), (19, 1135574), (22, 980723), (38, 567787), (71, 303886), (142, 151943), (209, 103234), (418, 51617), (727, 29678), (781, 27626), (1349, 15994), (1454, 14839), (1562, 13813), (2698, 7997)]