21127449

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{52951}}^1$

素因数の和:52980

約数の個数: 16

約数和(自身を含む): 33889280

約数和(自身を除く): 12761831

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 52951, 158853, 370657, 1006069, 1111971, 3018207, 7042483, 21127449]

約数ペア:

[(1, 21127449), (3, 7042483), (7, 3018207), (19, 1111971), (21, 1006069), (57, 370657), (133, 158853), (399, 52951)]