21000304822

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{40541129}}^1$

素因数の和:40541175

約数の個数: 16

約数和(自身を含む): 36973510560

約数和(自身を除く): 15973205738

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 40541129, 81082258, 283787903, 567575806, 1500021773, 3000043546, 10500152411, 21000304822]

約数ペア:

[(1, 21000304822), (2, 10500152411), (7, 3000043546), (14, 1500021773), (37, 567575806), (74, 283787903), (259, 81082258), (518, 40541129)]