20812695

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{709}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 35443200

約数和(自身を除く): 14630505

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 515, 709, 1545, 1957, 2127, 3545, 5871, 9785, 10635, 13471, 29355, 40413, 67355, 73027, 202065, 219081, 365135, 1095405, 1387513, 4162539, 6937565, 20812695]

約数ペア:

[(1, 20812695), (3, 6937565), (5, 4162539), (15, 1387513), (19, 1095405), (57, 365135), (95, 219081), (103, 202065), (285, 73027), (309, 67355), (515, 40413), (709, 29355), (1545, 13471), (1957, 10635), (2127, 9785), (3545, 5871)]