19905152

素因数分解:

$2^7\times {\mathrm{155509}}^1$

素因数の和:155523

約数の個数: 16

約数和(自身を含む): 39655050

約数和(自身を除く): 19749898

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 155509, 311018, 622036, 1244072, 2488144, 4976288, 9952576, 19905152]

約数ペア:

[(1, 19905152), (2, 9952576), (4, 4976288), (8, 2488144), (16, 1244072), (32, 622036), (64, 311018), (128, 155509)]