21307403

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 24009216

約数和(自身を除く): 2701813

約数列:

[1, 13, 43, 47, 559, 611, 811, 2021, 10543, 26273, 34873, 38117, 453349, 495521, 1639031, 21307403]

約数ペア:

[(1, 21307403), (13, 1639031), (43, 495521), (47, 453349), (559, 38117), (611, 34873), (811, 26273), (2021, 10543)]