21410263

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1873}}^1$

素因数の和:1974

約数の個数: 16

約数和(自身を含む): 25906176

約数和(自身を除く): 4495913

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1873, 11431, 13111, 43079, 132983, 301553, 930881, 3058609, 21410263]

約数ペア:

[(1, 21410263), (7, 3058609), (23, 930881), (71, 301553), (161, 132983), (497, 43079), (1633, 13111), (1873, 11431)]