21979477

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 24701040

約数和(自身を除く): 2721563

約数列:

[1, 13, 29, 173, 337, 377, 2249, 4381, 5017, 9773, 58301, 65221, 127049, 757913, 1690729, 21979477]

約数ペア:

[(1, 21979477), (13, 1690729), (29, 757913), (173, 127049), (337, 65221), (377, 58301), (2249, 9773), (4381, 5017)]