21320839

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1759}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 3009401

約数列:

[1, 17, 23, 31, 391, 527, 713, 1759, 12121, 29903, 40457, 54529, 687769, 926993, 1254167, 21320839]

約数ペア:

[(1, 21320839), (17, 1254167), (23, 926993), (31, 687769), (391, 54529), (527, 40457), (713, 29903), (1759, 12121)]