19997258

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:550

約数の個数: 24

約数和(自身を含む): 32191236

約数和(自身を除く): 12193978

約数列:

[1, 2, 23, 41, 46, 82, 461, 529, 922, 943, 1058, 1886, 10603, 18901, 21206, 21689, 37802, 43378, 243869, 434723, 487738, 869446, 9998629, 19997258]

約数ペア:

[(1, 19997258), (2, 9998629), (23, 869446), (41, 487738), (46, 434723), (82, 243869), (461, 43378), (529, 37802), (922, 21689), (943, 21206), (1058, 18901), (1886, 10603)]