21042105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200401}}^1$

素因数の和:200416

約数の個数: 16

約数和(自身を含む): 38477184

約数和(自身を除く): 17435079

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200401, 601203, 1002005, 1402807, 3006015, 4208421, 7014035, 21042105]

約数ペア:

[(1, 21042105), (3, 7014035), (5, 4208421), (7, 3006015), (15, 1402807), (21, 1002005), (35, 601203), (105, 200401)]