19981044

素因数分解:

$2^2\times 3^2\times {\mathrm{555029}}^1$

素因数の和:555039

約数の個数: 18

約数和(自身を含む): 50507730

約数和(自身を除く): 30526686

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 555029, 1110058, 1665087, 2220116, 3330174, 4995261, 6660348, 9990522, 19981044]

約数ペア:

[(1, 19981044), (2, 9990522), (3, 6660348), (4, 4995261), (6, 3330174), (9, 2220116), (12, 1665087), (18, 1110058), (36, 555029)]