21409836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{254879}}^1$

素因数の和:254893

約数の個数: 24

約数和(自身を含む): 57093120

約数和(自身を除く): 35683284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 254879, 509758, 764637, 1019516, 1529274, 1784153, 3058548, 3568306, 5352459, 7136612, 10704918, 21409836]

約数ペア:

[(1, 21409836), (2, 10704918), (3, 7136612), (4, 5352459), (6, 3568306), (7, 3058548), (12, 1784153), (14, 1529274), (21, 1019516), (28, 764637), (42, 509758), (84, 254879)]