28156947

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6067}}^1$

素因数の和:6107

約数の個数: 32

約数和(自身を含む): 48932352

約数和(自身を除く): 20775405

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 4641, 6067, 18201, 42469, 78871, 103139, 127407, 236613, 309417, 552097, 721973, 1340807, 1656291, 2165919, 4022421, 9385649, 28156947]

約数ペア:

[(1, 28156947), (3, 9385649), (7, 4022421), (13, 2165919), (17, 1656291), (21, 1340807), (39, 721973), (51, 552097), (91, 309417), (119, 236613), (221, 127407), (273, 103139), (357, 78871), (663, 42469), (1547, 18201), (4641, 6067)]