42821721

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{839}}^1$

素因数の和:1005

約数の個数: 24

約数和(自身を含む): 63685440

約数和(自身を除く): 20863719

約数列:

[1, 3, 9, 53, 107, 159, 321, 477, 839, 963, 2517, 5671, 7551, 17013, 44467, 51039, 89773, 133401, 269319, 400203, 807957, 4757969, 14273907, 42821721]

約数ペア:

[(1, 42821721), (3, 14273907), (9, 4757969), (53, 807957), (107, 400203), (159, 269319), (321, 133401), (477, 89773), (839, 51039), (963, 44467), (2517, 17013), (5671, 7551)]