289765539

素因数分解:

$3^3\times 7^1\times {\mathrm{601}}^1\times {\mathrm{2551}}^1$

素因数の和:3168

約数の個数: 32

約数和(自身を含む): 491617280

約数和(自身を除く): 201851741

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 601, 1803, 2551, 4207, 5409, 7653, 12621, 16227, 17857, 22959, 37863, 53571, 68877, 113589, 160713, 482139, 1533151, 4599453, 10732057, 13798359, 32196171, 41395077, 96588513, 289765539]

約数ペア:

[(1, 289765539), (3, 96588513), (7, 41395077), (9, 32196171), (21, 13798359), (27, 10732057), (63, 4599453), (189, 1533151), (601, 482139), (1803, 160713), (2551, 113589), (4207, 68877), (5409, 53571), (7653, 37863), (12621, 22959), (16227, 17857)]