19897245

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{673}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 36209976

約数和(自身を除く): 16312731

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 673, 1095, 1971, 2019, 3285, 3365, 5913, 6057, 9855, 10095, 18171, 29565, 30285, 49129, 54513, 90855, 147387, 245645, 272565, 442161, 736935, 1326483, 2210805, 3979449, 6632415, 19897245]

約数ペア:

[(1, 19897245), (3, 6632415), (5, 3979449), (9, 2210805), (15, 1326483), (27, 736935), (45, 442161), (73, 272565), (81, 245645), (135, 147387), (219, 90855), (365, 54513), (405, 49129), (657, 30285), (673, 29565), (1095, 18171), (1971, 10095), (2019, 9855), (3285, 6057), (3365, 5913)]