21571286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15753514

約数列:

[1, 2, 11, 22, 23, 46, 89, 178, 253, 479, 506, 958, 979, 1958, 2047, 4094, 5269, 10538, 11017, 22034, 22517, 42631, 45034, 85262, 121187, 242374, 468941, 937882, 980513, 1961026, 10785643, 21571286]

約数ペア:

[(1, 21571286), (2, 10785643), (11, 1961026), (22, 980513), (23, 937882), (46, 468941), (89, 242374), (178, 121187), (253, 85262), (479, 45034), (506, 42631), (958, 22517), (979, 22034), (1958, 11017), (2047, 10538), (4094, 5269)]