21258030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{708601}}^1$

素因数の和:708611

約数の個数: 16

約数和(自身を含む): 51019344

約数和(自身を除く): 29761314

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 708601, 1417202, 2125803, 3543005, 4251606, 7086010, 10629015, 21258030]

約数ペア:

[(1, 21258030), (2, 10629015), (3, 7086010), (5, 4251606), (6, 3543005), (10, 2125803), (15, 1417202), (30, 708601)]