21345929

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2785591

約数列:

[1, 11, 37, 179, 293, 407, 1969, 3223, 6623, 10841, 52447, 72853, 119251, 576917, 1940539, 21345929]

約数ペア:

[(1, 21345929), (11, 1940539), (37, 576917), (179, 119251), (293, 72853), (407, 52447), (1969, 10841), (3223, 6623)]