20718038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:380

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 14505514

約数列:

[1, 2, 11, 22, 41, 82, 103, 206, 223, 446, 451, 902, 1133, 2266, 2453, 4223, 4906, 8446, 9143, 18286, 22969, 45938, 46453, 92906, 100573, 201146, 252659, 505318, 941729, 1883458, 10359019, 20718038]

約数ペア:

[(1, 20718038), (2, 10359019), (11, 1883458), (22, 941729), (41, 505318), (82, 252659), (103, 201146), (206, 100573), (223, 92906), (446, 46453), (451, 45938), (902, 22969), (1133, 18286), (2266, 9143), (2453, 8446), (4223, 4906)]