21000978851

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1\times {\mathrm{15511}}^1$

素因数の和:15651

約数の個数: 24

約数和(自身を含む): 23047605504

約数和(自身を除く): 2046626653

約数列:

[1, 23, 37, 43, 851, 989, 1369, 1591, 15511, 31487, 36593, 58867, 356753, 573907, 666973, 1353941, 13199861, 15340379, 21234559, 24678001, 488394857, 567594023, 913086037, 21000978851]

約数ペア:

[(1, 21000978851), (23, 913086037), (37, 567594023), (43, 488394857), (851, 24678001), (989, 21234559), (1369, 15340379), (1591, 13199861), (15511, 1353941), (31487, 666973), (36593, 573907), (58867, 356753)]