18420615

素因数分解:

$3^5\times 5^1\times {\mathrm{15161}}^1$

素因数の和:15181

約数の個数: 24

約数和(自身を含む): 33113808

約数和(自身を除く): 14693193

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15161, 45483, 75805, 136449, 227415, 409347, 682245, 1228041, 2046735, 3684123, 6140205, 18420615]

約数ペア:

[(1, 18420615), (3, 6140205), (5, 3684123), (9, 2046735), (15, 1228041), (27, 682245), (45, 409347), (81, 227415), (135, 136449), (243, 75805), (405, 45483), (1215, 15161)]