21532863

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 33530112

約数和(自身を除く): 11997249

約数列:

[1, 3, 11, 17, 33, 51, 131, 187, 293, 393, 561, 879, 1441, 2227, 3223, 4323, 4981, 6681, 9669, 14943, 24497, 38383, 54791, 73491, 115149, 164373, 422213, 652511, 1266639, 1957533, 7177621, 21532863]

約数ペア:

[(1, 21532863), (3, 7177621), (11, 1957533), (17, 1266639), (33, 652511), (51, 422213), (131, 164373), (187, 115149), (293, 73491), (393, 54791), (561, 38383), (879, 24497), (1441, 14943), (2227, 9669), (3223, 6681), (4323, 4981)]