21784076

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{1223}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 39309984

約数和(自身を除く): 17525908

約数列:

[1, 2, 4, 61, 73, 122, 146, 244, 292, 1223, 2446, 4453, 4892, 8906, 17812, 74603, 89279, 149206, 178558, 298412, 357116, 5446019, 10892038, 21784076]

約数ペア:

[(1, 21784076), (2, 10892038), (4, 5446019), (61, 357116), (73, 298412), (122, 178558), (146, 149206), (244, 89279), (292, 74603), (1223, 17812), (2446, 8906), (4453, 4892)]