19519504

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12577}}^1$

素因数の和:12682

約数の個数: 20

約数和(自身を含む): 38211964

約数和(自身を除く): 18692460

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12577, 25154, 50308, 100616, 201232, 1219969, 2439938, 4879876, 9759752, 19519504]

約数ペア:

[(1, 19519504), (2, 9759752), (4, 4879876), (8, 2439938), (16, 1219969), (97, 201232), (194, 100616), (388, 50308), (776, 25154), (1552, 12577)]