21569686

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:939

約数の個数: 16

約数和(自身を含む): 32970240

約数和(自身を除く): 11400554

約数列:

[1, 2, 79, 158, 211, 422, 647, 1294, 16669, 33338, 51113, 102226, 136517, 273034, 10784843, 21569686]

約数ペア:

[(1, 21569686), (2, 10784843), (79, 273034), (158, 136517), (211, 102226), (422, 51113), (647, 33338), (1294, 16669)]