221539241

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 286156800

約数和(自身を除く): 64617559

約数列:

[1, 7, 11, 49, 71, 77, 343, 497, 539, 781, 827, 3479, 3773, 5467, 5789, 9097, 24353, 38269, 40523, 58717, 63679, 267883, 283661, 411019, 445753, 645887, 2877133, 3120271, 4521209, 20139931, 31648463, 221539241]

約数ペア:

[(1, 221539241), (7, 31648463), (11, 20139931), (49, 4521209), (71, 3120271), (77, 2877133), (343, 645887), (497, 445753), (539, 411019), (781, 283661), (827, 267883), (3479, 63679), (3773, 58717), (5467, 40523), (5789, 38269), (9097, 24353)]