21881823

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{2437}}^1$

素因数の和:2554

約数の個数: 16

約数和(自身を含む): 30309216

約数和(自身を除く): 8427393

約数列:

[1, 3, 41, 73, 123, 219, 2437, 2993, 7311, 8979, 99917, 177901, 299751, 533703, 7293941, 21881823]

約数ペア:

[(1, 21881823), (3, 7293941), (41, 533703), (73, 299751), (123, 177901), (219, 99917), (2437, 8979), (2993, 7311)]