21438213

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1\times {\mathrm{661}}^1$

素因数の和:1252

約数の個数: 16

約数和(自身を含む): 30187200

約数和(自身を除く): 8748987

約数列:

[1, 3, 19, 57, 569, 661, 1707, 1983, 10811, 12559, 32433, 37677, 376109, 1128327, 7146071, 21438213]

約数ペア:

[(1, 21438213), (3, 7146071), (19, 1128327), (57, 376109), (569, 37677), (661, 32433), (1707, 12559), (1983, 10811)]