21723987

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{5807}}^1$

素因数の和:5882

約数の個数: 16

約数和(自身を含む): 30666240

約数和(自身を除く): 8942253

約数列:

[1, 3, 29, 43, 87, 129, 1247, 3741, 5807, 17421, 168403, 249701, 505209, 749103, 7241329, 21723987]

約数ペア:

[(1, 21723987), (3, 7241329), (29, 749103), (43, 505209), (87, 249701), (129, 168403), (1247, 17421), (3741, 5807)]