26921889

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 40

約数和(自身を含む): 42441960

約数和(自身を除く): 15520071

約数列:

[1, 3, 9, 27, 29, 73, 81, 87, 157, 219, 261, 471, 657, 783, 1413, 1971, 2117, 2349, 4239, 4553, 5913, 6351, 11461, 12717, 13659, 19053, 34383, 40977, 57159, 103149, 122931, 171477, 309447, 332369, 368793, 928341, 997107, 2991321, 8973963, 26921889]

約数ペア:

[(1, 26921889), (3, 8973963), (9, 2991321), (27, 997107), (29, 928341), (73, 368793), (81, 332369), (87, 309447), (157, 171477), (219, 122931), (261, 103149), (471, 57159), (657, 40977), (783, 34383), (1413, 19053), (1971, 13659), (2117, 12717), (2349, 11461), (4239, 6351), (4553, 5913)]