21138864

素因数分解:

$2^4\times 3^1\times {\mathrm{440393}}^1$

素因数の和:440404

約数の個数: 20

約数和(自身を含む): 54608856

約数和(自身を除く): 33469992

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 440393, 880786, 1321179, 1761572, 2642358, 3523144, 5284716, 7046288, 10569432, 21138864]

約数ペア:

[(1, 21138864), (2, 10569432), (3, 7046288), (4, 5284716), (6, 3523144), (8, 2642358), (12, 1761572), (16, 1321179), (24, 880786), (48, 440393)]