15683787

素因数分解:

$3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 27104000

約数和(自身を除く): 11420213

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 199, 417, 567, 597, 973, 1251, 1393, 1791, 2919, 3753, 4179, 5373, 8757, 11259, 12537, 16119, 26271, 27661, 37611, 78813, 82983, 112833, 193627, 248949, 580881, 746847, 1742643, 2240541, 5227929, 15683787]

約数ペア:

[(1, 15683787), (3, 5227929), (7, 2240541), (9, 1742643), (21, 746847), (27, 580881), (63, 248949), (81, 193627), (139, 112833), (189, 82983), (199, 78813), (417, 37611), (567, 27661), (597, 26271), (973, 16119), (1251, 12537), (1393, 11259), (1791, 8757), (2919, 5373), (3753, 4179)]