21605419

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3727}}^1$

素因数の和:3786

約数の個数: 16

約数和(自身を含む): 25767936

約数和(自身を除く): 4162517

約数列:

[1, 11, 17, 31, 187, 341, 527, 3727, 5797, 40997, 63359, 115537, 696949, 1270907, 1964129, 21605419]

約数ペア:

[(1, 21605419), (11, 1964129), (17, 1270907), (31, 696949), (187, 115537), (341, 63359), (527, 40997), (3727, 5797)]