18997695

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2143}}^1$

素因数の和:2351

約数の個数: 24

約数和(自身を含む): 33111936

約数和(自身を除く): 14114241

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2143, 2955, 6429, 8865, 10715, 19287, 32145, 96435, 422171, 1266513, 2110855, 3799539, 6332565, 18997695]

約数ペア:

[(1, 18997695), (3, 6332565), (5, 3799539), (9, 2110855), (15, 1266513), (45, 422171), (197, 96435), (591, 32145), (985, 19287), (1773, 10715), (2143, 8865), (2955, 6429)]