21990216

素因数分解:

$2^3\times 3^1\times {\mathrm{916259}}^1$

素因数の和:916268

約数の個数: 16

約数和(自身を含む): 54975600

約数和(自身を除く): 32985384

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 916259, 1832518, 2748777, 3665036, 5497554, 7330072, 10995108, 21990216]

約数ペア:

[(1, 21990216), (2, 10995108), (3, 7330072), (4, 5497554), (6, 3665036), (8, 2748777), (12, 1832518), (24, 916259)]