19995316

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3469}}^1$

素因数の和:3615

約数の個数: 24

約数和(自身を含む): 38475360

約数和(自身を除く): 18480044

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3469, 5764, 6938, 13876, 38159, 76318, 152636, 454439, 908878, 1817756, 4998829, 9997658, 19995316]

約数ペア:

[(1, 19995316), (2, 9997658), (4, 4998829), (11, 1817756), (22, 908878), (44, 454439), (131, 152636), (262, 76318), (524, 38159), (1441, 13876), (2882, 6938), (3469, 5764)]