18914973

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81883}}^1$

素因数の和:81904

約数の個数: 16

約数和(自身を含む): 31443456

約数和(自身を除く): 12528483

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81883, 245649, 573181, 900713, 1719543, 2702139, 6304991, 18914973]

約数ペア:

[(1, 18914973), (3, 6304991), (7, 2702139), (11, 1719543), (21, 900713), (33, 573181), (77, 245649), (231, 81883)]