19923201

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 30671784

約数和(自身を除く): 10748583

約数列:

[1, 3, 9, 17, 51, 153, 197, 591, 661, 1773, 1983, 3349, 5949, 10047, 11237, 30141, 33711, 101133, 130217, 390651, 1171953, 2213689, 6641067, 19923201]

約数ペア:

[(1, 19923201), (3, 6641067), (9, 2213689), (17, 1171953), (51, 390651), (153, 130217), (197, 101133), (591, 33711), (661, 30141), (1773, 11237), (1983, 10047), (3349, 5949)]