21015972

素因数分解:

$2^2\times 3^2\times {\mathrm{583777}}^1$

素因数の和:583787

約数の個数: 18

約数和(自身を含む): 53123798

約数和(自身を除く): 32107826

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583777, 1167554, 1751331, 2335108, 3502662, 5253993, 7005324, 10507986, 21015972]

約数ペア:

[(1, 21015972), (2, 10507986), (3, 7005324), (4, 5253993), (6, 3502662), (9, 2335108), (12, 1751331), (18, 1167554), (36, 583777)]