21189063

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2467}}^1$

素因数の和:2886

約数の個数: 16

約数和(自身を含む): 32380160

約数和(自身を除く): 11191097

約数列:

[1, 3, 7, 21, 409, 1227, 2467, 2863, 7401, 8589, 17269, 51807, 1009003, 3027009, 7063021, 21189063]

約数ペア:

[(1, 21189063), (3, 7063021), (7, 3027009), (21, 1009003), (409, 51807), (1227, 17269), (2467, 8589), (2863, 7401)]