19887134

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{4457}}^1$

素因数の和:4579

約数の個数: 16

約数和(自身を含む): 31455648

約数和(自身を除く): 11568514

約数列:

[1, 2, 23, 46, 97, 194, 2231, 4457, 4462, 8914, 102511, 205022, 432329, 864658, 9943567, 19887134]

約数ペア:

[(1, 19887134), (2, 9943567), (23, 864658), (46, 432329), (97, 205022), (194, 102511), (2231, 8914), (4457, 4462)]