1998855

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1033}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 3548688

約数和(自身を除く): 1549833

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1033, 1935, 3099, 5165, 9297, 15495, 44419, 46485, 133257, 222095, 399771, 666285, 1998855]

約数ペア:

[(1, 1998855), (3, 666285), (5, 399771), (9, 222095), (15, 133257), (43, 46485), (45, 44419), (129, 15495), (215, 9297), (387, 5165), (645, 3099), (1033, 1935)]