16964272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{81559}}^1$

素因数の和:81580

約数の個数: 20

約数和(自身を含む): 35397040

約数和(自身を除く): 18432768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 81559, 163118, 326236, 652472, 1060267, 1304944, 2120534, 4241068, 8482136, 16964272]

約数ペア:

[(1, 16964272), (2, 8482136), (4, 4241068), (8, 2120534), (13, 1304944), (16, 1060267), (26, 652472), (52, 326236), (104, 163118), (208, 81559)]