18875247

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{509}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 25850880

約数和(自身を除く): 6975633

約数列:

[1, 3, 47, 141, 263, 509, 789, 1527, 12361, 23923, 37083, 71769, 133867, 401601, 6291749, 18875247]

約数ペア:

[(1, 18875247), (3, 6291749), (47, 401601), (141, 133867), (263, 71769), (509, 37083), (789, 23923), (1527, 12361)]