21716164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{1753}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 40271840

約数和(自身を除く): 18555676

約数列:

[1, 2, 4, 19, 38, 76, 163, 326, 652, 1753, 3097, 3506, 6194, 7012, 12388, 33307, 66614, 133228, 285739, 571478, 1142956, 5429041, 10858082, 21716164]

約数ペア:

[(1, 21716164), (2, 10858082), (4, 5429041), (19, 1142956), (38, 571478), (76, 285739), (163, 133228), (326, 66614), (652, 33307), (1753, 12388), (3097, 7012), (3506, 6194)]