20137755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 36605952

約数和(自身を除く): 16468197

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 127, 155, 165, 341, 381, 465, 635, 961, 1023, 1397, 1705, 1905, 2883, 3937, 4191, 4805, 5115, 6985, 10571, 11811, 14415, 19685, 20955, 31713, 43307, 52855, 59055, 122047, 129921, 158565, 216535, 366141, 610235, 649605, 1342517, 1830705, 4027551, 6712585, 20137755]

約数ペア:

[(1, 20137755), (3, 6712585), (5, 4027551), (11, 1830705), (15, 1342517), (31, 649605), (33, 610235), (55, 366141), (93, 216535), (127, 158565), (155, 129921), (165, 122047), (341, 59055), (381, 52855), (465, 43307), (635, 31713), (961, 20955), (1023, 19685), (1397, 14415), (1705, 11811), (1905, 10571), (2883, 6985), (3937, 5115), (4191, 4805)]