20890485

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6029}}^1$

素因数の和:6058

約数の個数: 48

約数和(自身を含む): 45152640

約数和(自身を除く): 24262155

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6029, 18087, 30145, 42203, 54261, 66319, 90435, 126609, 198957, 211015, 271305, 331595, 379827, 464233, 596871, 633045, 994785, 1392699, 1899135, 2321165, 2984355, 4178097, 6963495, 20890485]

約数ペア:

[(1, 20890485), (3, 6963495), (5, 4178097), (7, 2984355), (9, 2321165), (11, 1899135), (15, 1392699), (21, 994785), (33, 633045), (35, 596871), (45, 464233), (55, 379827), (63, 331595), (77, 271305), (99, 211015), (105, 198957), (165, 126609), (231, 90435), (315, 66319), (385, 54261), (495, 42203), (693, 30145), (1155, 18087), (3465, 6029)]