20381144

素因数分解:

$2^3\times 7^1\times {\mathrm{363949}}^1$

素因数の和:363962

約数の個数: 16

約数和(自身を含む): 43674000

約数和(自身を除く): 23292856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 363949, 727898, 1455796, 2547643, 2911592, 5095286, 10190572, 20381144]

約数ペア:

[(1, 20381144), (2, 10190572), (4, 5095286), (7, 2911592), (8, 2547643), (14, 1455796), (28, 727898), (56, 363949)]