21965715

素因数分解:

$3^3\times 5^1\times {\mathrm{162709}}^1$

素因数の和:162723

約数の個数: 16

約数和(自身を含む): 39050400

約数和(自身を除く): 17084685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 162709, 488127, 813545, 1464381, 2440635, 4393143, 7321905, 21965715]

約数ペア:

[(1, 21965715), (3, 7321905), (5, 4393143), (9, 2440635), (15, 1464381), (27, 813545), (45, 488127), (135, 162709)]