31808139

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 51477120

約数和(自身を除く): 19668981

約数列:

[1, 3, 11, 17, 31, 33, 51, 59, 93, 177, 187, 341, 527, 561, 649, 961, 1003, 1023, 1581, 1829, 1947, 2883, 3009, 5487, 5797, 10571, 11033, 16337, 17391, 20119, 31093, 31713, 33099, 49011, 56699, 60357, 93279, 170097, 179707, 342023, 539121, 623689, 963883, 1026069, 1871067, 2891649, 10602713, 31808139]

約数ペア:

[(1, 31808139), (3, 10602713), (11, 2891649), (17, 1871067), (31, 1026069), (33, 963883), (51, 623689), (59, 539121), (93, 342023), (177, 179707), (187, 170097), (341, 93279), (527, 60357), (561, 56699), (649, 49011), (961, 33099), (1003, 31713), (1023, 31093), (1581, 20119), (1829, 17391), (1947, 16337), (2883, 11033), (3009, 10571), (5487, 5797)]