21747315

素因数分解:

$3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{3229}}^1$

素因数の和:3686

約数の個数: 16

約数和(自身を含む): 34884000

約数和(自身を除く): 13136685

約数列:

[1, 3, 5, 15, 449, 1347, 2245, 3229, 6735, 9687, 16145, 48435, 1449821, 4349463, 7249105, 21747315]

約数ペア:

[(1, 21747315), (3, 7249105), (5, 4349463), (15, 1449821), (449, 48435), (1347, 16145), (2245, 9687), (3229, 6735)]