21281005514

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1\times {\mathrm{445937}}^1$

素因数の和:446269

約数の個数: 16

約数和(自身を含む): 32364396288

約数和(自身を除く): 11083390774

約数列:

[1, 2, 107, 214, 223, 446, 23861, 47722, 445937, 891874, 47715259, 95430518, 99443951, 198887902, 10640502757, 21281005514]

約数ペア:

[(1, 21281005514), (2, 10640502757), (107, 198887902), (214, 99443951), (223, 95430518), (446, 47715259), (23861, 891874), (47722, 445937)]