17945955

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{607}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 32664192

約数和(自身を除く): 14718237

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 607, 657, 1095, 1821, 1971, 3035, 3285, 5463, 5913, 9105, 9855, 16389, 27315, 29565, 44311, 49167, 81945, 132933, 221555, 245835, 398799, 664665, 1196397, 1993995, 3589191, 5981985, 17945955]

約数ペア:

[(1, 17945955), (3, 5981985), (5, 3589191), (9, 1993995), (15, 1196397), (27, 664665), (45, 398799), (73, 245835), (81, 221555), (135, 132933), (219, 81945), (365, 49167), (405, 44311), (607, 29565), (657, 27315), (1095, 16389), (1821, 9855), (1971, 9105), (3035, 5913), (3285, 5463)]