21831945

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{63281}}^1$

素因数の和:63312

約数の個数: 16

約数和(自身を含む): 36450432

約数和(自身を除く): 14618487

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 63281, 189843, 316405, 949215, 1455463, 4366389, 7277315, 21831945]

約数ペア:

[(1, 21831945), (3, 7277315), (5, 4366389), (15, 1455463), (23, 949215), (69, 316405), (115, 189843), (345, 63281)]