18345621

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{45979}}^1$

素因数の和:46008

約数の個数: 16

約数和(自身を含む): 29427200

約数和(自身を除く): 11081579

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 45979, 137937, 321853, 873601, 965559, 2620803, 6115207, 18345621]

約数ペア:

[(1, 18345621), (3, 6115207), (7, 2620803), (19, 965559), (21, 873601), (57, 321853), (133, 137937), (399, 45979)]