15209985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8521}}^1$

素因数の和:8553

約数の個数: 32

約数和(自身を含む): 29452032

約数和(自身を除く): 14242047

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 8521, 25563, 42605, 59647, 127815, 144857, 178941, 298235, 434571, 724285, 894705, 1013999, 2172855, 3041997, 5069995, 15209985]

約数ペア:

[(1, 15209985), (3, 5069995), (5, 3041997), (7, 2172855), (15, 1013999), (17, 894705), (21, 724285), (35, 434571), (51, 298235), (85, 178941), (105, 144857), (119, 127815), (255, 59647), (357, 42605), (595, 25563), (1785, 8521)]