221895351

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{449}}^1\times {\mathrm{1277}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 328957200

約数和(自身を除く): 107061849

約数列:

[1, 3, 9, 43, 129, 387, 449, 1277, 1347, 3831, 4041, 11493, 19307, 54911, 57921, 164733, 173763, 494199, 573373, 1720119, 5160357, 24655039, 73965117, 221895351]

約数ペア:

[(1, 221895351), (3, 73965117), (9, 24655039), (43, 5160357), (129, 1720119), (387, 573373), (449, 494199), (1277, 173763), (1347, 164733), (3831, 57921), (4041, 54911), (11493, 19307)]