21452715

素因数分解:

$3^3\times 5^1\times {\mathrm{158909}}^1$

素因数の和:158923

約数の個数: 16

約数和(自身を含む): 38138400

約数和(自身を除く): 16685685

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 158909, 476727, 794545, 1430181, 2383635, 4290543, 7150905, 21452715]

約数ペア:

[(1, 21452715), (3, 7150905), (5, 4290543), (9, 2383635), (15, 1430181), (27, 794545), (45, 476727), (135, 158909)]