20817610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{189251}}^1$

素因数の和:189269

約数の個数: 16

約数和(自身を含む): 40878432

約数和(自身を除く): 20060822

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 189251, 378502, 946255, 1892510, 2081761, 4163522, 10408805, 20817610]

約数ペア:

[(1, 20817610), (2, 10408805), (5, 4163522), (10, 2081761), (11, 1892510), (22, 946255), (55, 378502), (110, 189251)]