248891139

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{7949}}^1$

素因数の和:8040

約数の個数: 36

約数和(自身を含む): 424148400

約数和(自身を除く): 175257261

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 1491, 3479, 4473, 7949, 10437, 23847, 31311, 55643, 71541, 166929, 389501, 500787, 564379, 1168503, 1693137, 3505509, 3950653, 5079411, 11851959, 27654571, 35555877, 82963713, 248891139]

約数ペア:

[(1, 248891139), (3, 82963713), (7, 35555877), (9, 27654571), (21, 11851959), (49, 5079411), (63, 3950653), (71, 3505509), (147, 1693137), (213, 1168503), (441, 564379), (497, 500787), (639, 389501), (1491, 166929), (3479, 71541), (4473, 55643), (7949, 31311), (10437, 23847)]