21836984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209971}}^1$

素因数の和:209990

約数の個数: 16

約数和(自身を含む): 44094120

約数和(自身を除く): 22257136

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209971, 419942, 839884, 1679768, 2729623, 5459246, 10918492, 21836984]

約数ペア:

[(1, 21836984), (2, 10918492), (4, 5459246), (8, 2729623), (13, 1679768), (26, 839884), (52, 419942), (104, 209971)]