21374031

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53569}}^1$

素因数の和:53598

約数の個数: 16

約数和(自身を含む): 34284800

約数和(自身を除く): 12910769

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53569, 160707, 374983, 1017811, 1124949, 3053433, 7124677, 21374031]

約数ペア:

[(1, 21374031), (3, 7124677), (7, 3053433), (19, 1124949), (21, 1017811), (57, 374983), (133, 160707), (399, 53569)]