21667995

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2521}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 37769472

約数和(自身を除く): 16101477

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1719, 2521, 2865, 7563, 8595, 12605, 22689, 37815, 113445, 481511, 1444533, 2407555, 4333599, 7222665, 21667995]

約数ペア:

[(1, 21667995), (3, 7222665), (5, 4333599), (9, 2407555), (15, 1444533), (45, 481511), (191, 113445), (573, 37815), (955, 22689), (1719, 12605), (2521, 8595), (2865, 7563)]