19740976

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{6263}}^1$

素因数の和:6468

約数の個数: 20

約数和(自身を含む): 38448432

約数和(自身を除く): 18707456

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 6263, 12526, 25052, 50104, 100208, 1233811, 2467622, 4935244, 9870488, 19740976]

約数ペア:

[(1, 19740976), (2, 9870488), (4, 4935244), (8, 2467622), (16, 1233811), (197, 100208), (394, 50104), (788, 25052), (1576, 12526), (3152, 6263)]