20455721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2699}}^1$

素因数の和:2776

約数の個数: 16

約数和(自身を含む): 24494400

約数和(自身を除く): 4038679

約数列:

[1, 11, 13, 53, 143, 583, 689, 2699, 7579, 29689, 35087, 143047, 385957, 1573517, 1859611, 20455721]

約数ペア:

[(1, 20455721), (11, 1859611), (13, 1573517), (53, 385957), (143, 143047), (583, 35087), (689, 29689), (2699, 7579)]