20727824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 43538880

約数和(自身を除く): 22811056

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 227, 439, 454, 878, 908, 1756, 1816, 2951, 3512, 3632, 5707, 5902, 7024, 11414, 11804, 22828, 23608, 45656, 47216, 91312, 99653, 199306, 398612, 797224, 1295489, 1594448, 2590978, 5181956, 10363912, 20727824]

約数ペア:

[(1, 20727824), (2, 10363912), (4, 5181956), (8, 2590978), (13, 1594448), (16, 1295489), (26, 797224), (52, 398612), (104, 199306), (208, 99653), (227, 91312), (439, 47216), (454, 45656), (878, 23608), (908, 22828), (1756, 11804), (1816, 11414), (2951, 7024), (3512, 5902), (3632, 5707)]