31193877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 22028523

約数列:

[1, 3, 11, 13, 19, 33, 39, 43, 57, 89, 129, 143, 209, 247, 267, 429, 473, 559, 627, 741, 817, 979, 1157, 1419, 1677, 1691, 2451, 2717, 2937, 3471, 3827, 5073, 6149, 8151, 8987, 10621, 11481, 12727, 18447, 18601, 21983, 26961, 31863, 38181, 42097, 49751, 55803, 65949, 72713, 116831, 126291, 149253, 218139, 241813, 350493, 547261, 725439, 799843, 945269, 1641783, 2399529, 2835807, 10397959, 31193877]

約数ペア:

[(1, 31193877), (3, 10397959), (11, 2835807), (13, 2399529), (19, 1641783), (33, 945269), (39, 799843), (43, 725439), (57, 547261), (89, 350493), (129, 241813), (143, 218139), (209, 149253), (247, 126291), (267, 116831), (429, 72713), (473, 65949), (559, 55803), (627, 49751), (741, 42097), (817, 38181), (979, 31863), (1157, 26961), (1419, 21983), (1677, 18601), (1691, 18447), (2451, 12727), (2717, 11481), (2937, 10621), (3471, 8987), (3827, 8151), (5073, 6149)]