81747015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12763}}^1$

素因数の和:12839

約数の個数: 32

約数和(自身を含む): 151942656

約数和(自身を除く): 70195641

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 6405, 12763, 38289, 63815, 89341, 191445, 268023, 446705, 778543, 1340115, 2335629, 3892715, 5449801, 11678145, 16349403, 27249005, 81747015]

約数ペア:

[(1, 81747015), (3, 27249005), (5, 16349403), (7, 11678145), (15, 5449801), (21, 3892715), (35, 2335629), (61, 1340115), (105, 778543), (183, 446705), (305, 268023), (427, 191445), (915, 89341), (1281, 63815), (2135, 38289), (6405, 12763)]