20404813

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{487}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 24103296

約数和(自身を除く): 3698483

約数列:

[1, 11, 13, 143, 293, 487, 3223, 3809, 5357, 6331, 41899, 69641, 142691, 1569601, 1854983, 20404813]

約数ペア:

[(1, 20404813), (11, 1854983), (13, 1569601), (143, 142691), (293, 69641), (487, 41899), (3223, 6331), (3809, 5357)]