19677515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 29250720

約数和(自身を除く): 9573205

約数列:

[1, 5, 11, 13, 29, 55, 65, 73, 143, 145, 169, 319, 365, 377, 715, 803, 845, 949, 1595, 1859, 1885, 2117, 4015, 4147, 4745, 4901, 9295, 10439, 10585, 12337, 20735, 23287, 24505, 27521, 52195, 53911, 61685, 116435, 135707, 137605, 269555, 302731, 357773, 678535, 1513655, 1788865, 3935503, 19677515]

約数ペア:

[(1, 19677515), (5, 3935503), (11, 1788865), (13, 1513655), (29, 678535), (55, 357773), (65, 302731), (73, 269555), (143, 137605), (145, 135707), (169, 116435), (319, 61685), (365, 53911), (377, 52195), (715, 27521), (803, 24505), (845, 23287), (949, 20735), (1595, 12337), (1859, 10585), (1885, 10439), (2117, 9295), (4015, 4901), (4147, 4745)]