21647048

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 42975360

約数和(自身を除く): 21328312

約数列:

[1, 2, 4, 8, 23, 46, 71, 92, 142, 184, 284, 568, 1633, 1657, 3266, 3314, 6532, 6628, 13064, 13256, 38111, 76222, 117647, 152444, 235294, 304888, 470588, 941176, 2705881, 5411762, 10823524, 21647048]

約数ペア:

[(1, 21647048), (2, 10823524), (4, 5411762), (8, 2705881), (23, 941176), (46, 470588), (71, 304888), (92, 235294), (142, 152444), (184, 117647), (284, 76222), (568, 38111), (1633, 13256), (1657, 13064), (3266, 6628), (3314, 6532)]