20926619

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{6841}}^1$

素因数の和:6890

約数の個数: 16

約数和(自身を含む): 26273280

約数和(自身を除く): 5346661

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 6841, 47887, 129979, 157343, 909853, 1101401, 2989517, 20926619]

約数ペア:

[(1, 20926619), (7, 2989517), (19, 1101401), (23, 909853), (133, 157343), (161, 129979), (437, 47887), (3059, 6841)]