20321763

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87973}}^1$

素因数の和:87994

約数の個数: 16

約数和(自身を含む): 33782016

約数和(自身を除く): 13460253

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87973, 263919, 615811, 967703, 1847433, 2903109, 6773921, 20321763]

約数ペア:

[(1, 20321763), (3, 6773921), (7, 2903109), (11, 1847433), (21, 967703), (33, 615811), (77, 263919), (231, 87973)]