19660977

素因数分解:

$3^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{599}}^1$

素因数の和:1133

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 12911823

約数列:

[1, 3, 7, 9, 21, 63, 521, 599, 1563, 1797, 3647, 4193, 4689, 5391, 10941, 12579, 32823, 37737, 312079, 936237, 2184553, 2808711, 6553659, 19660977]

約数ペア:

[(1, 19660977), (3, 6553659), (7, 2808711), (9, 2184553), (21, 936237), (63, 312079), (521, 37737), (599, 32823), (1563, 12579), (1797, 10941), (3647, 5391), (4193, 4689)]