21500391

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{21017}}^1$

素因数の和:21062

約数の個数: 16

約数和(自身を含む): 32283648

約数和(自身を除く): 10783257

約数列:

[1, 3, 11, 31, 33, 93, 341, 1023, 21017, 63051, 231187, 651527, 693561, 1954581, 7166797, 21500391]

約数ペア:

[(1, 21500391), (3, 7166797), (11, 1954581), (31, 693561), (33, 651527), (93, 231187), (341, 63051), (1023, 21017)]