21076838

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{19997}}^1$

素因数の和:20047

約数の個数: 16

約数和(自身を含む): 34556544

約数和(自身を除く): 13479706

約数列:

[1, 2, 17, 31, 34, 62, 527, 1054, 19997, 39994, 339949, 619907, 679898, 1239814, 10538419, 21076838]

約数ペア:

[(1, 21076838), (2, 10538419), (17, 1239814), (31, 679898), (34, 619907), (62, 339949), (527, 39994), (1054, 19997)]