21966795

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 39970656

約数和(自身を除く): 18003861

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 743, 1095, 1971, 2229, 3285, 3715, 5913, 6687, 9855, 11145, 20061, 29565, 33435, 54239, 60183, 100305, 162717, 271195, 300915, 488151, 813585, 1464453, 2440755, 4393359, 7322265, 21966795]

約数ペア:

[(1, 21966795), (3, 7322265), (5, 4393359), (9, 2440755), (15, 1464453), (27, 813585), (45, 488151), (73, 300915), (81, 271195), (135, 162717), (219, 100305), (365, 60183), (405, 54239), (657, 33435), (743, 29565), (1095, 20061), (1971, 11145), (2229, 9855), (3285, 6687), (3715, 5913)]