221454009

素因数分解:

$3^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{12421}}^1$

素因数の和:12717

約数の個数: 24

約数和(自身を含む): 366896192

約数和(自身を除く): 145442183

約数列:

[1, 3, 7, 9, 21, 63, 283, 849, 1981, 2547, 5943, 12421, 17829, 37263, 86947, 111789, 260841, 782523, 3515143, 10545429, 24606001, 31636287, 73818003, 221454009]

約数ペア:

[(1, 221454009), (3, 73818003), (7, 31636287), (9, 24606001), (21, 10545429), (63, 3515143), (283, 782523), (849, 260841), (1981, 111789), (2547, 86947), (5943, 37263), (12421, 17829)]