18965881

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 21434688

約数和(自身を除く): 2468807

約数列:

[1, 11, 43, 101, 397, 473, 1111, 4343, 4367, 17071, 40097, 47773, 187781, 441067, 1724171, 18965881]

約数ペア:

[(1, 18965881), (11, 1724171), (43, 441067), (101, 187781), (397, 47773), (473, 40097), (1111, 17071), (4343, 4367)]