28735209

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:382

約数の個数: 32

約数和(自身を含む): 44044800

約数和(自身を除く): 15309591

約数列:

[1, 3, 9, 27, 61, 73, 183, 219, 239, 549, 657, 717, 1647, 1971, 2151, 4453, 6453, 13359, 14579, 17447, 40077, 43737, 52341, 120231, 131211, 157023, 393633, 471069, 1064267, 3192801, 9578403, 28735209]

約数ペア:

[(1, 28735209), (3, 9578403), (9, 3192801), (27, 1064267), (61, 471069), (73, 393633), (183, 157023), (219, 131211), (239, 120231), (549, 52341), (657, 43737), (717, 40077), (1647, 17447), (1971, 14579), (2151, 13359), (4453, 6453)]