21188553

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2927}}^1$

素因数の和:3076

約数の個数: 16

約数和(自身を含む): 29982720

約数和(自身を除く): 8794167

約数列:

[1, 3, 19, 57, 127, 381, 2413, 2927, 7239, 8781, 55613, 166839, 371729, 1115187, 7062851, 21188553]

約数ペア:

[(1, 21188553), (3, 7062851), (19, 1115187), (57, 371729), (127, 166839), (381, 55613), (2413, 8781), (2927, 7239)]