28212165

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3943}}^1$

素因数の和:4010

約数の個数: 32

約数和(自身を含む): 51114240

約数和(自身を除く): 22902075

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 159, 265, 477, 795, 1431, 2385, 3943, 7155, 11829, 19715, 35487, 59145, 106461, 177435, 208979, 532305, 626937, 1044895, 1880811, 3134685, 5642433, 9404055, 28212165]

約数ペア:

[(1, 28212165), (3, 9404055), (5, 5642433), (9, 3134685), (15, 1880811), (27, 1044895), (45, 626937), (53, 532305), (135, 208979), (159, 177435), (265, 106461), (477, 59145), (795, 35487), (1431, 19715), (2385, 11829), (3943, 7155)]