21372195

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{863}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 15786717

約数列:

[1, 3, 5, 13, 15, 39, 65, 127, 195, 381, 635, 863, 1651, 1905, 2589, 4315, 4953, 8255, 11219, 12945, 24765, 33657, 56095, 109601, 168285, 328803, 548005, 1424813, 1644015, 4274439, 7124065, 21372195]

約数ペア:

[(1, 21372195), (3, 7124065), (5, 4274439), (13, 1644015), (15, 1424813), (39, 548005), (65, 328803), (127, 168285), (195, 109601), (381, 56095), (635, 33657), (863, 24765), (1651, 12945), (1905, 11219), (2589, 8255), (4315, 4953)]