20888426

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{1427}}^1$

素因数の和:2005

約数の個数: 16

約数和(自身を含む): 33826464

約数和(自身を除く): 12938038

約数列:

[1, 2, 13, 26, 563, 1126, 1427, 2854, 7319, 14638, 18551, 37102, 803401, 1606802, 10444213, 20888426]

約数ペア:

[(1, 20888426), (2, 10444213), (13, 1606802), (26, 803401), (563, 37102), (1126, 18551), (1427, 14638), (2854, 7319)]