21972592

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6971}}^1$

素因数の和:7176

約数の個数: 20

約数和(自身を含む): 42794136

約数和(自身を除く): 20821544

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6971, 13942, 27884, 55768, 111536, 1373287, 2746574, 5493148, 10986296, 21972592]

約数ペア:

[(1, 21972592), (2, 10986296), (4, 5493148), (8, 2746574), (16, 1373287), (197, 111536), (394, 55768), (788, 27884), (1576, 13942), (3152, 6971)]