42021021

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{7121}}^1$

素因数の和:7412

約数の個数: 16

約数和(自身を含む): 64268928

約数和(自身を除く): 22247907

約数列:

[1, 3, 7, 21, 281, 843, 1967, 5901, 7121, 21363, 49847, 149541, 2001001, 6003003, 14007007, 42021021]

約数ペア:

[(1, 42021021), (3, 14007007), (7, 6003003), (21, 2001001), (281, 149541), (843, 49847), (1967, 21363), (5901, 7121)]