21720119

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 2278345

約数列:

[1, 23, 31, 41, 713, 743, 943, 1271, 17089, 23033, 29233, 30463, 529759, 700649, 944353, 21720119]

約数ペア:

[(1, 21720119), (23, 944353), (31, 700649), (41, 529759), (713, 30463), (743, 29233), (943, 23033), (1271, 17089)]