15721421115

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{839}}^1\times {\mathrm{20479}}^1$

素因数の和:21387

約数の個数: 32

約数和(自身を含む): 25598361600

約数和(自身を除く): 9876940485

約数列:

[1, 3, 5, 15, 61, 183, 305, 839, 915, 2517, 4195, 12585, 20479, 51179, 61437, 102395, 153537, 255895, 307185, 767685, 1249219, 3747657, 6246095, 17181881, 18738285, 51545643, 85909405, 257728215, 1048094741, 3144284223, 5240473705, 15721421115]

約数ペア:

[(1, 15721421115), (3, 5240473705), (5, 3144284223), (15, 1048094741), (61, 257728215), (183, 85909405), (305, 51545643), (839, 18738285), (915, 17181881), (2517, 6246095), (4195, 3747657), (12585, 1249219), (20479, 767685), (51179, 307185), (61437, 255895), (102395, 153537)]