21689235

素因数分解:

$3^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{463}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 38753280

約数和(自身を除く): 17064045

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 347, 463, 1041, 1389, 1735, 2315, 3123, 4167, 5205, 6945, 9369, 12501, 15615, 20835, 46845, 62505, 160661, 481983, 803305, 1445949, 2409915, 4337847, 7229745, 21689235]

約数ペア:

[(1, 21689235), (3, 7229745), (5, 4337847), (9, 2409915), (15, 1445949), (27, 803305), (45, 481983), (135, 160661), (347, 62505), (463, 46845), (1041, 20835), (1389, 15615), (1735, 12501), (2315, 9369), (3123, 6945), (4167, 5205)]