18975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:47

約数の個数: 24

約数和(自身を含む): 35712

約数和(自身を除く): 16737

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1265, 1725, 3795, 6325, 18975]

約数ペア:

[(1, 18975), (3, 6325), (5, 3795), (11, 1725), (15, 1265), (23, 825), (25, 759), (33, 575), (55, 345), (69, 275), (75, 253), (115, 165)]