19157715

素因数分解:

$3^4\times 5^1\times {\mathrm{47303}}^1$

素因数の和:47320

約数の個数: 20

約数和(自身を含む): 34342704

約数和(自身を除く): 15184989

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47303, 141909, 236515, 425727, 709545, 1277181, 2128635, 3831543, 6385905, 19157715]

約数ペア:

[(1, 19157715), (3, 6385905), (5, 3831543), (9, 2128635), (15, 1277181), (27, 709545), (45, 425727), (81, 236515), (135, 141909), (405, 47303)]