20749355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{13009}}^1$

素因数の和:13054

約数の個数: 16

約数和(自身を含む): 28101600

約数和(自身を除く): 7352245

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 13009, 65045, 143099, 377261, 715495, 1886305, 4149871, 20749355]

約数ペア:

[(1, 20749355), (5, 4149871), (11, 1886305), (29, 715495), (55, 377261), (145, 143099), (319, 65045), (1595, 13009)]