20153763

素因数分解:

$3^2\times 7^1\times {\mathrm{319901}}^1$

素因数の和:319914

約数の個数: 12

約数和(自身を含む): 33269808

約数和(自身を除く): 13116045

約数列:

[1, 3, 7, 9, 21, 63, 319901, 959703, 2239307, 2879109, 6717921, 20153763]

約数ペア:

[(1, 20153763), (3, 6717921), (7, 2879109), (9, 2239307), (21, 959703), (63, 319901)]