21490104097

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{39870323}}^1$

素因数の和:39870348

約数の個数: 12

約数和(自身を含む): 27271301616

約数和(自身を除く): 5781197519

約数列:

[1, 7, 11, 49, 77, 539, 39870323, 279092261, 438573553, 1953645827, 3070014871, 21490104097]

約数ペア:

[(1, 21490104097), (7, 3070014871), (11, 1953645827), (49, 438573553), (77, 279092261), (539, 39870323)]