21099639

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10837}}^1$

素因数の和:10910

約数の個数: 16

約数和(自身を含む): 31213440

約数和(自身を除く): 10113801

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10837, 32511, 119207, 357621, 639383, 1918149, 7033213, 21099639]

約数ペア:

[(1, 21099639), (3, 7033213), (11, 1918149), (33, 639383), (59, 357621), (177, 119207), (649, 32511), (1947, 10837)]