20181946

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1223}}^1$

素因数の和:1485

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 11074118

約数列:

[1, 2, 37, 74, 223, 446, 1223, 2446, 8251, 16502, 45251, 90502, 272729, 545458, 10090973, 20181946]

約数ペア:

[(1, 20181946), (2, 10090973), (37, 545458), (74, 272729), (223, 90502), (446, 45251), (1223, 16502), (2446, 8251)]