19404656

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12503}}^1$

素因数の和:12608

約数の個数: 20

約数和(自身を含む): 37987152

約数和(自身を除く): 18582496

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12503, 25006, 50012, 100024, 200048, 1212791, 2425582, 4851164, 9702328, 19404656]

約数ペア:

[(1, 19404656), (2, 9702328), (4, 4851164), (8, 2425582), (16, 1212791), (97, 200048), (194, 100024), (388, 50012), (776, 25006), (1552, 12503)]