21139494

素因数分解:

$2^1\times 3^1\times {\mathrm{1039}}^1\times {\mathrm{3391}}^1$

素因数の和:4435

約数の個数: 16

約数和(自身を含む): 42332160

約数和(自身を除く): 21192666

約数列:

[1, 2, 3, 6, 1039, 2078, 3117, 3391, 6234, 6782, 10173, 20346, 3523249, 7046498, 10569747, 21139494]

約数ペア:

[(1, 21139494), (2, 10569747), (3, 7046498), (6, 3523249), (1039, 20346), (2078, 10173), (3117, 6782), (3391, 6234)]