20153931

素因数分解:

$3^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1723}}^1$

素因数の和:2290

約数の個数: 16

約数和(自身を含む): 30783744

約数和(自身を除く): 10629813

約数列:

[1, 3, 7, 21, 557, 1671, 1723, 3899, 5169, 11697, 12061, 36183, 959711, 2879133, 6717977, 20153931]

約数ペア:

[(1, 20153931), (3, 6717977), (7, 2879133), (21, 959711), (557, 36183), (1671, 12061), (1723, 11697), (3899, 5169)]