18869979

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{613}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 26092544

約数和(自身を除く): 7222565

約数列:

[1, 3, 31, 93, 331, 613, 993, 1839, 10261, 19003, 30783, 57009, 202903, 608709, 6289993, 18869979]

約数ペア:

[(1, 18869979), (3, 6289993), (31, 608709), (93, 202903), (331, 57009), (613, 30783), (993, 19003), (1839, 10261)]