15657921

素因数分解:

$3^3\times {\mathrm{307}}^1\times {\mathrm{1889}}^1$

素因数の和:2205

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 7626879

約数列:

[1, 3, 9, 27, 307, 921, 1889, 2763, 5667, 8289, 17001, 51003, 579923, 1739769, 5219307, 15657921]

約数ペア:

[(1, 15657921), (3, 5219307), (9, 1739769), (27, 579923), (307, 51003), (921, 17001), (1889, 8289), (2763, 5667)]