21011470

素因数分解:

$2^1\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{2003}}^1$

素因数の和:3059

約数の個数: 16

約数和(自身を含む): 37875600

約数和(自身を除く): 16864130

約数列:

[1, 2, 5, 10, 1049, 2003, 2098, 4006, 5245, 10015, 10490, 20030, 2101147, 4202294, 10505735, 21011470]

約数ペア:

[(1, 21011470), (2, 10505735), (5, 4202294), (10, 2101147), (1049, 20030), (2003, 10490), (2098, 10015), (4006, 5245)]