28828947

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72253}}^1$

素因数の和:72282

約数の個数: 16

約数和(自身を含む): 46242560

約数和(自身を除く): 17413613

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72253, 216759, 505771, 1372807, 1517313, 4118421, 9609649, 28828947]

約数ペア:

[(1, 28828947), (3, 9609649), (7, 4118421), (19, 1517313), (21, 1372807), (57, 505771), (133, 216759), (399, 72253)]