207989509

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4337}}^1$

素因数の和:4405

約数の個数: 32

約数和(自身を含む): 279853056

約数和(自身を除く): 71863547

約数列:

[1, 7, 13, 17, 31, 91, 119, 217, 221, 403, 527, 1547, 2821, 3689, 4337, 6851, 30359, 47957, 56381, 73729, 134447, 394667, 516103, 941129, 958477, 1747811, 2285599, 6709339, 12234677, 15999193, 29712787, 207989509]

約数ペア:

[(1, 207989509), (7, 29712787), (13, 15999193), (17, 12234677), (31, 6709339), (91, 2285599), (119, 1747811), (217, 958477), (221, 941129), (403, 516103), (527, 394667), (1547, 134447), (2821, 73729), (3689, 56381), (4337, 47957), (6851, 30359)]