1978965

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:258

約数の個数: 32

約数和(自身を含む): 3576960

約数和(自身を除く): 1597995

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 137, 321, 411, 535, 685, 963, 1233, 1605, 2055, 2889, 3699, 4815, 6165, 14445, 14659, 18495, 43977, 73295, 131931, 219885, 395793, 659655, 1978965]

約数ペア:

[(1, 1978965), (3, 659655), (5, 395793), (9, 219885), (15, 131931), (27, 73295), (45, 43977), (107, 18495), (135, 14659), (137, 14445), (321, 6165), (411, 4815), (535, 3699), (685, 2889), (963, 2055), (1233, 1605)]