19783971

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{677}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 30461184

約数和(自身を除く): 10677213

約数列:

[1, 3, 9, 17, 51, 153, 191, 573, 677, 1719, 2031, 3247, 6093, 9741, 11509, 29223, 34527, 103581, 129307, 387921, 1163763, 2198219, 6594657, 19783971]

約数ペア:

[(1, 19783971), (3, 6594657), (9, 2198219), (17, 1163763), (51, 387921), (153, 129307), (191, 103581), (573, 34527), (677, 29223), (1719, 11509), (2031, 9741), (3247, 6093)]