18312231

素因数分解:

$3^1\times 7^2\times {\mathrm{347}}^1\times {\mathrm{359}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 28563840

約数和(自身を除く): 10251609

約数列:

[1, 3, 7, 21, 49, 147, 347, 359, 1041, 1077, 2429, 2513, 7287, 7539, 17003, 17591, 51009, 52773, 124573, 373719, 872011, 2616033, 6104077, 18312231]

約数ペア:

[(1, 18312231), (3, 6104077), (7, 2616033), (21, 872011), (49, 373719), (147, 124573), (347, 52773), (359, 51009), (1041, 17591), (1077, 17003), (2429, 7539), (2513, 7287)]