19690544

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6247}}^1$

素因数の和:6452

約数の個数: 20

約数和(自身を含む): 38350224

約数和(自身を除く): 18659680

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6247, 12494, 24988, 49976, 99952, 1230659, 2461318, 4922636, 9845272, 19690544]

約数ペア:

[(1, 19690544), (2, 9845272), (4, 4922636), (8, 2461318), (16, 1230659), (197, 99952), (394, 49976), (788, 24988), (1576, 12494), (3152, 6247)]