18783405

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5879}}^1$

素因数の和:5961

約数の個数: 24

約数和(自身を含む): 33022080

約数和(自身を除く): 14238675

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 5879, 17637, 29395, 52911, 88185, 264555, 417409, 1252227, 2087045, 3756681, 6261135, 18783405]

約数ペア:

[(1, 18783405), (3, 6261135), (5, 3756681), (9, 2087045), (15, 1252227), (45, 417409), (71, 264555), (213, 88185), (355, 52911), (639, 29395), (1065, 17637), (3195, 5879)]