21019339

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{617}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 24324480

約数和(自身を除く): 3305141

約数列:

[1, 11, 19, 163, 209, 617, 1793, 3097, 6787, 11723, 34067, 100571, 128953, 1106281, 1910849, 21019339]

約数ペア:

[(1, 21019339), (11, 1910849), (19, 1106281), (163, 128953), (209, 100571), (617, 34067), (1793, 11723), (3097, 6787)]