18884985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4861}}^1$

素因数の和:4913

約数の個数: 32

約数和(自身を含む): 35473152

約数和(自身を除く): 16588167

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 105, 111, 185, 259, 555, 777, 1295, 3885, 4861, 14583, 24305, 34027, 72915, 102081, 170135, 179857, 510405, 539571, 899285, 1258999, 2697855, 3776997, 6294995, 18884985]

約数ペア:

[(1, 18884985), (3, 6294995), (5, 3776997), (7, 2697855), (15, 1258999), (21, 899285), (35, 539571), (37, 510405), (105, 179857), (111, 170135), (185, 102081), (259, 72915), (555, 34027), (777, 24305), (1295, 14583), (3885, 4861)]