28439289

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 43520000

約数和(自身を除く): 15080711

約数列:

[1, 3, 9, 27, 67, 79, 199, 201, 237, 597, 603, 711, 1791, 1809, 2133, 5293, 5373, 13333, 15721, 15879, 39999, 47163, 47637, 119997, 141489, 142911, 359991, 424467, 1053307, 3159921, 9479763, 28439289]

約数ペア:

[(1, 28439289), (3, 9479763), (9, 3159921), (27, 1053307), (67, 424467), (79, 359991), (199, 142911), (201, 141489), (237, 119997), (597, 47637), (603, 47163), (711, 39999), (1791, 15879), (1809, 15721), (2133, 13333), (5293, 5373)]