19020987

素因数分解:

$3^4\times {\mathrm{449}}^1\times {\mathrm{523}}^1$

素因数の和:984

約数の個数: 20

約数和(自身を含む): 28531800

約数和(自身を除く): 9510813

約数列:

[1, 3, 9, 27, 81, 449, 523, 1347, 1569, 4041, 4707, 12123, 14121, 36369, 42363, 234827, 704481, 2113443, 6340329, 19020987]

約数ペア:

[(1, 19020987), (3, 6340329), (9, 2113443), (27, 704481), (81, 234827), (449, 42363), (523, 36369), (1347, 14121), (1569, 12123), (4041, 4707)]