21865586

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{3581}}^1$

素因数の和:3697

約数の個数: 16

約数和(自身を含む): 34043328

約数和(自身を除く): 12177742

約数列:

[1, 2, 43, 71, 86, 142, 3053, 3581, 6106, 7162, 153983, 254251, 307966, 508502, 10932793, 21865586]

約数ペア:

[(1, 21865586), (2, 10932793), (43, 508502), (71, 307966), (86, 254251), (142, 153983), (3053, 7162), (3581, 6106)]