19990458

素因数分解:

$2^1\times 3^2\times {\mathrm{311}}^1\times {\mathrm{3571}}^1$

素因数の和:3890

約数の個数: 24

約数和(自身を含む): 43464096

約数和(自身を除く): 23473638

約数列:

[1, 2, 3, 6, 9, 18, 311, 622, 933, 1866, 2799, 3571, 5598, 7142, 10713, 21426, 32139, 64278, 1110581, 2221162, 3331743, 6663486, 9995229, 19990458]

約数ペア:

[(1, 19990458), (2, 9995229), (3, 6663486), (6, 3331743), (9, 2221162), (18, 1110581), (311, 64278), (622, 32139), (933, 21426), (1866, 10713), (2799, 7142), (3571, 5598)]