21070797

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17257}}^1$

素因数の和:17308

約数の個数: 16

約数和(自身を含む): 31478592

約数和(自身を除く): 10407795

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17257, 51771, 189827, 569481, 638509, 1915527, 7023599, 21070797]

約数ペア:

[(1, 21070797), (3, 7023599), (11, 1915527), (33, 638509), (37, 569481), (111, 189827), (407, 51771), (1221, 17257)]